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stringlengths
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112
description
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13k
source
int64
1
7
difficulty
int64
0
25
solution
stringlengths
7
983k
language
stringclasses
4 values
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
a=int(input()) print(6*a*(a-1)+1)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int work(string s) { reverse((s).begin(), (s).end()); int ans = 0, p = 1; for (int i = s.length() - 1; i >= 0; i--) { ans += (s[i] - '0') * p; p *= 10; } return ans; } int main() { int a; cin >> a; long long ans = 1; for (int i = 2; i <= a; i++) { ...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long n; cin >> n; cout << 6 * n * (n - 1) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; public class A { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(System.in); PrintWriter out = new PrintWriter(System.out); int a = sc.nextInt(); int ans = 1; for(int i = 2; i <= a; ++i) ans += 6 * (i * 2 - 2); out.println(ans...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; const long long n = 2000000000; int main() { long long a; cin >> a; long long res = 1, deg = 2; for (long long i = 1; i < a; ++i) { res = (res + 6 * deg) % n; deg = (deg + 2) % n; } cout << res << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class main { public static void main(String[] args) { Scanner s = new Scanner (System.in); int n= s.nextInt();int ans=0; n --; for(int i=1; i<=n; i++) ans += (12 * i); System.out.println(ans+1); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n; long long f[100005]; int main() { scanf("%d", &n); f[1] = 1; for (int i = 2; i <= n; i++) f[i] = (i * 2 - 1) * 6 + f[i - 1] - 6; printf("%lld\n", f[n]); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n, m, k, a[18257 + 7]; int main() { cin >> n; a[1] = 1; k = 12; for (int i = 2; i <= n; i++, k += 12) a[i] = a[i - 1] + k; cout << a[n]; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Main { public static void main(String[] args) throws Exception{ new Main().run(); } private void run() throws Exception{ Scanner input = new Scanner(System.in); int num = input.nextInt(); System.out.println(6*(num-1)*(num)+1); ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a, s = 1; cin >> a; for (int i = 1; i < a; i++) s += i * 12; cout << s; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { unsigned long long num, x = 1, i; cin >> num; for (i = 1; i < num; i++) x = x + (12 * i); cout << x << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) s = 1 for i in range(1,n): s += 12*i # print(s) print(s)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long int n; cin >> n; cout << 6 * n * (n - 1) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; long long mod(long long x) { return ((x % 1000000009 + 1000000009) % 1000000009); } long long add(long long a, long long b) { return mod(mod(a) + mod(b)); } long long mult(long long a, long long b) { return mod(mod(a) * mod(b)); } long long modPow(long long a, long long b...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n=input() print (6*n*(n-1))+1,"\n"
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) if n == 1: print(1) exit(0) k = 12 ans = k for i in range(n - 2): k = k + 12 ans += k print(ans + 1)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Star{ public static void main(String[] args){ Scanner in = new Scanner(System.in); int n = in.nextInt(); long ans = 1; long g = 0; for( int i = 2; i <= n; i++){ g += 12; ans += g; } System....
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n, a = 12, b = 1; cin >> n; for (int i = 1; i < n; i++) { b += a; a += 12; } cout << b << endl; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); int a, ans = 1, p = 0; cin >> a; if (a == 1) ans = 1; for (int i = 1; i < a; ++i) { p += 12; ans += p; } cout << ans << '\n'; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.math.BigInteger; import java.util.*; public class Main { public static void main(String[] args) throws IOException { (new Main()).solve(); } public Main() { } MyReader in = new MyReader(); PrintWriter out = new PrintWriter(System.out); void solve() throws IOException { //B...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long a; cin >> a; cout << 6 * a * (a - 1) + 1; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long n; cin >> n; cout << 6 * n * (n - 1) + 1 << endl; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class C_171_b { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); long sum = 1 ; for (int i = 1; i <= n-1; i++) { sum +=2*i*6; } System.out.println(sum); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a; cin >> a; cout << 6 * a * (a - 1) + 1; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
def calc(n): return (1+n)*n/2 n=int(raw_input()) p=1 q=0 for i in range(n-1): p+=3 q+=1 print calc(p)+calc(q)*3
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
x = int(input()) print(6*x*(x-1)+1)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.IOException; import java.io.OutputStreamWriter; import java.io.BufferedWriter; import java.util.InputMismatchException; import java.io.OutputStream; import java.io.PrintWriter; import java.util.NoSuchElementException; import java.io.Writer; import java.math.BigInteger; import java.io.InputStream; /** *...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n; int main() { cin >> n; cout << 6 * n * (n - 1) + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long n; cin >> n; cout << (1ll + ((n - 1ll) * n * 6ll)) << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n=int(input()) sum = 1 if(n==1): print(sum) else: for i in range(n-1): sum += 12*(n-1) n=n-1 print(sum)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int a[200000]; int main() { int n, m, i; a[1] = 1; for (i = 2; i <= 18257; i++) a[i] = a[i - 1] + 12 * (i - 1); while (~scanf("%d", &n)) { printf("%d\n", a[n]); } return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int res = 0; for (int i = 1; i < n; i++) res += i; int x = 2 * n - 1; for (int i = 1; i < n; i++) res += x + i; res *= 2; res += x; cout << res; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.InputStream; import java.io.OutputStream; import java.io.InputStreamReader; import java.io.BufferedReader; import java.io.IOException; import java.io.PrintWriter; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.File; import java.io.FileNotFoundException; import java.util.A...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.*; public class B { public static void main(String args[]) { Scanner scan = new Scanner(System.in); int n = scan.nextInt(); int rtn = 1; for(int i=2;i <= n;i++) rtn += (i-1)*12; System.out.println(rtn); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) b = (6*n*(n - 1)) + 1 print(b)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
a = int(input()) accu = 0 cur = 1 for i in range(a): cur += accu accu += 12 print(cur)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#!/usr/bin/python import sys import math def num(x): return (x - 1) * 2 * 6 n = int((sys.stdin.readline()).strip()) if n <= 0: print "Error n=%d" % n quit(-1) if n == 1: print "1" quit() result = 1 for i in range(2, n+1): result += num(i) print result quit()
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int n, ans = 1; int main() { cin >> n; for (int i = 2; i <= n; ++i) ans += (i - 1) * 12; cout << ans; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long int number = 0; cin >> number; long long int answer = 1; for (int i = 2; i <= number; i++) answer = answer + 12 * (i - 1); cout << answer << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; import java.math.*; //4/1/12 7:38 PM //by Abrackadabra public class B { public static void main(String[] args) throws IOException { if (args.length > 0 && args[0].equals("Abra")) debugMode = true; new B().run(); } int IOMode = 0; //0 - consoleIO, 1 - ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
a=[0]*18258 a[1]=1 n=int(input()) for i in range (2,n+1): a[i]=a[i-1] + ((i*2 - 2)*6) print(a[n])
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; public class B implements Runnable { public static void main(String[] args) { new Thread(new B()).run(); } BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer in; PrintWriter out = new PrintWriter(System.out); public String nextToken...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { ios::sync_with_stdio(0); cin.tie(0); long long int i, n, sum = 1; cin >> n; for (i = 1; i < n; i++) sum += 12 * i; cout << sum << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; void solve(void) { int N; long int s = 0; cin >> N; for (int i = 2; i <= N; i++) s += i - 1; cout << s * 6 * 2 + 1 << endl; } int main(int argc, char const *argv[]) { solve(); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) print((6*n*(n-1))+1)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int in() { int r = 0, c; for (c = getchar(); c <= 32; c = getchar()) ; if (c == '-') return -in(); for (; c > 32; r = (r << 1) + (r << 3) + c - '0', c = getchar()) ; return r; } int main() { int N = in(); long long res = 1; for (int i = 2; i <= N; i++) { res = res + ...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.*; import java.util.*; import java.text.DecimalFormat; public class Main { public static void main(String[] args) { InputStream inputStream = System.in; OutputStream outputStream = System.out; InputReader in = new InputReader(inputStream); PrintWriter out = new PrintW...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int main() { unsigned long long n, star_n; scanf("%I64u", &n); star_n = 6LL * n * (n - 1) + 1; printf("%I64u", star_n); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n=int(input()) if n==1: print(1) else: print(1+((n-1)*(12*n))//2)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) x = int(12*n*(n-1)/2 + 1) print(x)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(raw_input()) ans = 1 for i in range(1,n): ans += 12*i print ans
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; static const double EPS = 1e-5; int num = 0; void star(int n) { if (n == 1) num++; if (n > 1) { num += 12 * (n - 1); star(n - 1); } } int main(int argc, const char* argv[]) { int a; cin >> a; star(a); cout << num; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
N = input() print 1+6*N*(N-1)
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int N; int main(void) { scanf("%d", &N); printf("%d\n", 6 * N * (N - 1) + 1); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long a, b = 1, x = 0; cin >> a; a--; for (int k = 1; k <= a; k++) { x += 2; b += 6 * x; } cout << b; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class B { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int a = sc.nextInt(); int ans = 1; for (int i = 2; i <= a; i++) { ans += 12*(i-1); } System.out.println(ans); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.awt.*; import java.awt.geom.*; import java.io.*; import java.math.*; import java.text.*; import java.util.*; /* br = new BufferedReader(new FileReader("input.txt")); pw = new PrintWriter(new BufferedWriter(new FileWriter("output.txt"))); br = new BufferedReader(new InputStreamReader(System.in)); pw = new P...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) otv = 1 for i in range(1, n): otv += 12 * i print(otv)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> #pragma GCC target("avx2") #pragma GCC optimization("O3") #pragma GCC optimization("unroll-loops") using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(NULL); int a, res = 1, s = 0; cin >> a; for (int i = 1; i < a; i++) { s += 12; res += s; } cout <<...
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n, m = 1; cin >> n; for (int i = 1; i < n; i++) { m += (12 * i); } cout << m << endl; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n, output = 1; cin >> n; if (n == 1) { cout << n; return 0; } else while (n > 1) { output += (n - 1) * 12; n--; } cout << output << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.*; public class CodeForces{ public static int findIt(int m){ if(m<=1) return 1; else return ((m-1)*12)+findIt(m-1); } public static void main(String[] arg){ Scanner sc = new Scanner(System.in); System.out.print(findIt(sc....
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
def star(n): f = 1 while n: n -=1 f += n*12 return f print(star(int(input())))
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int main() { long long a, b, c, sum; while (scanf("%I64d", &a) != EOF) { sum = 1; c = 12; for (b = 1; b < a; b++) { sum += c; c = c + 12; } printf("%I64d\n", sum); } }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int main() { int a; scanf("%d", &a); printf("%d", 1 + 6 * (a - 1) * a); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { unsigned long long int a, s = 0, i; cin >> a; for (i = 1; i <= a; i++) { s = s + i - 1; } cout << s * 12 + 1 << endl; ; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.*; public class P171B { public static void main(String[] args) { Scanner in = new Scanner(System.in); int A = in.nextInt(); int ans = 1; for (int i = 1; i < A; ++i) ans += 12*i; System.out.println(ans); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a; scanf("%d", &a); printf("%I64d\n", 1 + (long long)a * (long long)(a - 1) * 6); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.*; public class Main { public static void main(String[] args) { Scanner input = new Scanner(System.in); int n = input.nextInt()-1; int a[]=new int[18258]; a[0]=1; a[1]=13; for (int i=2; i<=n; i++) { a[i]=12*i+a[i-1]; ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a; cin >> a; long long int ans = 6 * a * (a - 1) + 1; cout << ans << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
// package mainpackage; import java.io.*; import java.util.*; public class Main { public static void main(String... args) throws Exception { out = new PrintWriter(System.out); new Main().solve(); out.close(); } private static PrintWriter out; private BufferedReader reader; private int a; private ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n=int(input()) if n==1: print(1) else: s=0 for i in range(n): s+=12*i s+=1 print(s)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> #pragma comment(linker, "/STACK:64000000") using namespace std; int a; int main() { cin >> a; int ans = 1; for (int i = 2; i <= a; i++) { ans += (2 * i - 2) * 6; } cout << ans << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> inline int getInt() { int s; scanf("%d", &s); return s; } using namespace std; int main() { int ans = 1; int n = getInt(); for (int i = 0; i < (int)(n - 1); i++) { ans += ((i + 1) * 2 + 1) * 3; ans += ((i + 1) * 2 - 1) * 3; } printf("%d\n", ans); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
from __future__ import division def read(func=None): return func(raw_input()) if func else raw_input() ################################ a = read(int) def solve(a): if a == 1: return 1 if a == 2: return 13 prev1 = 3 prev2 = 1 total = 13 for i in xrange(3, a + 1): p...
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
def f(x): return 6 + 6*(2*x + 1) a = int(raw_input()) sum = 1 for x in xrange(a-1): sum += f(x) print sum
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = input() print 1+sum([12*(i-1) for i in range(2,n+1)])
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.*; public class Main { public static void main(String[] args) { Scanner s = new Scanner(System.in); long n = s.nextLong(); long res = 6*n*(n-1)+1; System.out.println(res); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n=int(input()) print(6*n*n-6*n+1)
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long i, j, k, l, n, m, p; while (cin >> n) { k = 0; for (i = 1; i <= n - 1; i++) { k += 12 * i; } k++; printf("%lld\n", k); } }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; long long res = 1; int main() { int n; cin >> n; for (int i = 1; i < n; ++i) { res += i * 12; } cout << res; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int A; cin >> A; cout << 6 * A * (A - 1) + 1 << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(input()) print(1+6*n*(n-1))
PYTHON3
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Star { public static void main(String[] args) { new Star().solve(); } public void solve(){ Scanner in = new Scanner(System.in); int input = in.nextInt(); int ans = recurse(input); System.out.println(ans); } public int recurse(int input){ if(input == 1...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n, s, i; cin >> n; s = 1; for (i = 2; i <= n; i++) s += (2 * i - 1) * 6 - 6; cout << s; cin.get(); cin.get(); }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.awt.Point; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.Scanner; public class CF_C { public static void main(String[] args) { Scanner sc=new Scanner(System.in); int[] vals=new int[18258]; vals[1]=1; for(int i=2;i<vals.leng...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long int a = 0; cin >> a; cout << 6 * a * (a - 1) + 1 << "\n"; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; n--; int sum = 1; for (int i = 1; i <= n; i++) sum += 12 * i; cout << sum; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Star { public static void main(String[] args) { Scanner in = new Scanner(System.in); int num = in.nextInt(); int sum = (num-1)*(num) / 2; System.out.println(12*sum + 1); } }
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long int n, ans = 1, k; cin >> n; ans = 3 * n - 2; ans = (ans * (ans + 1)) / 2; k = 3 * (n * (n - 1)) / 2; cout << k + ans; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long n; cin >> n; cout << 1 + 6 * n * (n - 1); }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a; int x; cin >> a; x = 6 * a * (a - 1) + 1; cout << x << endl; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { int a; cin >> a; int output = 0; int an = 12 * (a - 1); output = an / 2 * a; cout << output + 1; return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(raw_input()) c = 1 for i in xrange(n): c += 12 * i print c #print (12 ** (n + 1) - 1) / (12 ** n - 1)
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> int main() { int n; while (scanf("%d", &n) != EOF) { printf("%d\n", 6 * n * (n - 1) + 1); } }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(raw_input()) ans = 3 * (n * (n-1) >> 1) ans += ((3*n-2) * (3*n-1) >> 1) print ans
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
n = int(raw_input()); print 6*n*(n - 1) + 1;
PYTHON
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.util.Scanner; public class Star { public static Scanner in = new Scanner(System.in); public static void main(String[] args) { int numLayers = in.nextInt(); int total = 0; int odd = 3; for (int i = 0; i < numLayers; i ++) { if (i == 0) total += 1; else { total += odd * 6 - 6; ...
JAVA
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
#include <bits/stdc++.h> using namespace std; int main() { long long n; cin >> n; cout << (long long)(6 * n * (n - 1) + 1); return 0; }
CPP
171_B. Star
<image> Input The input contains a single integer a (1 ≤ a ≤ 18257). Output Print a single integer output (1 ≤ output ≤ 2·109). Examples Input 2 Output 13
2
8
import java.io.OutputStream; import java.io.IOException; import java.io.PrintWriter; import java.util.InputMismatchException; import java.io.Writer; import java.math.BigInteger; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top * @author Egor Kulikov (egor@egork.net) */ ...
JAVA