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name
stringlengths
2
112
description
stringlengths
29
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
import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.util.Arrays; import java.util.Enumeration; import java.util.Iterator; impo...
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 susbus{ public static void main(String[] args){ Scanner sc = new Scanner(System.in); int n = sc.nextInt(); long p = n*n*6-6*n+1; System.out.println(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
#include <bits/stdc++.h> using namespace std; int main() { int arr[18530]; arr[0] = 0; arr[1] = 1; arr[2] = 13; for (int i = 3; i <= 18527; i++) arr[i] = 12 * (i - 1) + arr[i - 1]; int n; cin >> n; cout << arr[n] << 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.io.*; public class star { public static void main(String args[])throws IOException { InputStreamReader read=new InputStreamReader(System.in); BufferedReader in=new BufferedReader(read); int i,n,s; s=0; n=Integer.parseInt(in.readLine()); if(n>1) { for(i=1;i<n;i++) s+=i; } s*=12; s...
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.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.util.Arrays; import java.util.Collections; import java.util.Scanner; public class Main { /** * @param args * @throws IOException */ public static void main(Stri...
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; template <class T> void read(T &x) { cin >> x; } template <class A> void read(vector<A> &x) { for (auto &a : x) read(a); } string to_string(bool b) { return b ? "TRUE" : "FALSE"; } string yesno(bool b) { return b ? "YES" : "NO"; } string to_string(char c) { return strin...
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; unsigned long long n, ans = 1; int main() { cin >> n; for (unsigned long long i = 2; i <= n; i++) ans += (i - 1) * 12; cout << 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
n=input() n=n-1 if n==0: print "1" exit(0) print (n*(2*12+(n-1)*12))/2+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 main() { ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); long long n; cin >> n; long long m = n - 1, ans = 0; for (long long k = m; k >= 1; k--) { long long j = 12 * k; ans += j; } cout << ans + 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
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.util.Scanner; public class Main1 { public static void main(String[] args) { Scanner sc=new Scanner(System.in); int a=sc.nextInt(); System.out.println(1+6*((a-1)*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
#include <bits/stdc++.h> int main() { long long int n; scanf("%I64d", &n); printf("%I64d", 1 + n * (n - 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
#include <bits/stdc++.h> using namespace std; int main() { int n = 0; scanf("%d", &n); int s = 0, nr = 0; s = 1; for (int i = 2; i <= n; i++) nr += 12, s += nr; printf("%d\n", s); 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; 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
#include <bits/stdc++.h> using namespace std; int main() { int a, result = 1; cin >> a; for (int i = 1; i <= a; i++) { result = result + (i - 1) * 12; } cout << result; }
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> #pragma hdrstop using namespace std; #pragma argsused int main(int argc, char* argv[]) { int a, b = 1; cin >> a; for (int i = 1; i < a; i++) { b += 12 * i; } cout << b << 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
a = int(input()) print(6 * a**2 - 6 * a + 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 main() { int n; scanf("%d\n", &n); printf("%d\n", n * 6 * (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
#include <bits/stdc++.h> using namespace std; inline int read() { int a = 0, f = 1; char ch = getchar(); for (; !isdigit(ch); ch = getchar()) if (ch == '-') f = -1; for (; isdigit(ch); ch = getchar()) a = (a << 3) + (a << 1) + ch - '0'; return a * f; } const int mod = 1e9 + 7; const int N = 1e6 + 5; signe...
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
x = int(input()) - 1 y = 6*x**2 + 6*x + 1 print(y)
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() { int n; cin >> n; int a[21111]; a[1] = 1; for (int i = 2; i <= n; i++) { a[i] = a[i - 1] + ((i - 1) * 2 - 1) * 3 + i * 6 - 3; } cout << a[n] << 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
a=int(input()) print(1+6*a*(a-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; long long tr(long long x) { return x * (x + 1) / 2; } int main() { long long n; cin >> n; cout << tr(n * 2 + n - 2) + 3 * tr(n - 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
#include <bits/stdc++.h> using namespace std; int main() { int n; long long s = 0; cin >> n; n--; s = 1; for (int i = 1; i <= n; i++) { s = s + 12 * i; } cout << s; 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
a = int(input()) print((a-1)*(a)*6+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
//package aprilfool; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; public class B { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int a = ni(); long s = 1; for(int i = 2;i <= a;i++){ ...
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=int(input()) n=a-1 s=n*(6*n+6) print(s+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; const int intmax = 0x3f3f3f3f; const long long lldmax = 0x3f3f3f3f3f3f3f3fll; double eps = 1e-8; template <class T> inline void checkmin(T &a, T b) { if (b < a) a = b; } template <class T> inline void checkmax(T &a, T b) { if (b > a) a = b; } template <class T> inline T...
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.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; public class Main { public static final long MOD = (long) 1e9 + 7; public static void main(String[] args) throws Exception { BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); I...
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 = int(input()) ans = 1 z = 0 for i in range(2, a + 1): z += 2 ans += z * 6 print(ans)
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(int argc, char **argv) { long long int n; std::cin >> n; long long int result = (n * 3LL - 2LL) * (n * 3LL - 1LL) / 2LL + 3LL * n * (n - 1LL) / 2LL; std::cout << result; 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 j{public static void main(String a[])throws IOException{Scanner b=new Scanner(System.in);double m=b.nextDouble();System.out.print((long)(6*m*(m-1)+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=input();print 6*a*~-a+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
a = input () b = 0 if 1 <= a <= 18257 : while a != 0 : c = ( a - 1 ) * 12 b += c a -= 1 print b + 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.io.OutputStream; import java.io.IOException; import java.io.PrintWriter; import java.util.InputMismatchException; import java.io.InputStream; import java.math.BigInteger; import java.util.*; public class Star{ public static void main(String[] args) { InputStream inputStream = System.in; OutputStream ...
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() { int a[19000], b, c, n; a[1] = 1; int i = 2; while (i <= 18257) { a[i] = a[i - 1] + 12 * (i - 1); i++; } while (scanf("%d", &n) != EOF) { 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; while (cin >> n) { int s; s = n * (n - 1) * 6 + 1; cout << s << 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 B171 { public static void main(String[] args) { Scanner in = new Scanner(System.in); long N = in.nextInt(); long answer = 6*N*(N-1)+1; System.out.println(answer); } }
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()) a=6*n*(n-1)+1 print(a)
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
x=int(raw_input()) print 1+6*x*(x-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
number = input() print (6 * number * (number-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.io.BufferedReader; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.io.StreamTokenizer; import java.math.BigInteger; public class Main { public static void main(String[] args) throws Exception { int...
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(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
#include <bits/stdc++.h> int main() { int n; 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
import java.io.*; import java.util.*; import java.lang.Math.*; public class star_num { public static void main(String args[])throws Exception { Scanner in=new Scanner(System.in); int n=in.nextInt(); System.out.println((6*n)*(n-1)+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 triangle(long long n) { if (n == 1) return 1; else return n + triangle(n - 1); } int heart(long long a) { if (a == 1) return 1; else return (6 * (a - 1)) + heart(a - 1); } int balls(long long a) { if (a == 1) return 1; else return hea...
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 x = 0, n, ans = 1; scanf("%d", &n); for (int i = 1; i < n; i++) x += 12, ans += x; 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
#include <bits/stdc++.h> #pragma hdrstop using namespace std; #pragma argsused int main(int argc, char* argv[]) { int a, b = 1; cin >> a; for (int i = 1; i < a; i++) { b += 12 * i; } cout << b << 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
var dp = new Int32Array(18257); dp[0] = 1; for (var i = 1; i < 18257; i++) dp[i] = dp[i - 1] + 12 * i; print(dp[readline() - 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
#!/usr/bin/env python from sys import stdin N = int(stdin.readline()) #N -= 1 res = 1 + 12 * (N * (N-1)) / 2 print res
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
a = input() print 6 * a * a - 6 * a + 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 main() { int n, k = 1, a[100000]; scanf("%d", &n); a[1] = 1; while (k < n) { k++; a[k] = a[k - 1] + 12 * (k - 1); } printf("%d\n", a[k]); 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
a = int(raw_input()) print(6 * a * (a - 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
#include <bits/stdc++.h> using namespace std; int main() { int n; while (cin >> n) { int r = 1; for (int i = 0, j = 0; i < n; i++, j += 2) r += j * 6; cout << r << 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 CF { public static void main(String[] args) { Scanner scan = new Scanner(System.in); int n = scan.nextInt(); int ans = 1 + 6*n*(n-1); System.out.println(ans); scan.close(); } }
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 sys input = lambda: sys.stdin.readline().rstrip() 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> using namespace std; int main() { int n; long long result; cin >> n; result = 6 * n * (n - 1) + 1; cout << result; 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.InputStreamReader; import java.io.IOException; import java.io.BufferedReader; import java.io.OutputStream; import java.io.PrintWriter; import java.util.StringTokenizer; import java.io.InputStream; import java.math.BigInteger; import java.util.ArrayList; import java.util.Arrays; import java.util.Collectio...
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 { /** * @param args */ public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); int sum = 0; for(int i = 1; i <= n; i++) { if(i == 1) { 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
n = int(raw_input()) n = (6 * n - 6) * n + 1 print 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
import java.util.Scanner; public class cfBStar { public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); long ret = 1; for (int k = 1; k < n; k++) { ret += (2*k) * 6; } System.out.println(ret); } }
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
print sum([12*(i-1) for i in xrange(1,int(raw_input())+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.*; public class cf171b { public static void main(String[] args) { Scanner in = new Scanner(System.in); long a = in.nextInt(); System.out.println(6*a*(a-1)+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
import sys a = int( sys.stdin.readline() ) print( 6 * a * (a - 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
#include <bits/stdc++.h> int n; int main() { scanf("%d", &n); printf("%d", (2 * n - 1) * (2 * n - 1) + 4 * (n - 1) * n / 2); }
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 X { public static void main(String[] args) { Scanner in = new Scanner(System.in); long n = in.nextLong(); System.out.println(6 * n * (n - 1) + 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; bool cmp(const int &a, const int &b) { return a > b; } int main() { cin.sync_with_stdio(0); cin.tie(0); cin.exceptions(cin.failbit); long long int n; cin >> n; cout << (6 * (n) * (n - 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
#include <bits/stdc++.h> using namespace std; long long arr[(int)1e6] = {}; int main() { int n; cin >> n; arr[0] = 1, arr[1] = 13; for (int i = 1; i <= n; i++) { arr[i] = arr[i - 1] + (12 * i); } cout << arr[n - 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> #pragma comment(linker, "/STACK:66777216") using namespace std; int nomalDay[] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; int leapDay[] = {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; const int OHT = 100100; const int TH = 1010; const int FH = 510; const int MAXINF = (2 << 26...
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 p171b { public static void main(String[] args) { Scanner sc = new Scanner(System.in); long a = sc.nextLong(); long count = 6*a*(a-1)+1; System.out.println(count); } }
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.io.*; public class star{ public static void main(String args[])throws IOException{ BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); int c = 0; int p = Integer.parseInt(in.readLine()); int count=-1; for(int i=0;i<p;i++){ c+=i; count++; } int x = 2*p-1; int y =...
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 m, s = 1; cin >> m; for (long int i = 0; i < m; i++) { s = s + 12 * i; } cout << s << 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
n = input() n = int(n) 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.io.BufferedReader; import java.io.InputStreamReader; import java.util.StringTokenizer; public class Solution { //<editor-fold desc="input parse" defaultstate="collapsed"> private static StringTokenizer st; private static BufferedReader reader = new BufferedReader(new InputStreamReader(System.i...
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 hex(n): return 3 * n * (n+1) + 1 def tri(n): return n * (n+1) / 2 import sys n = int(sys.stdin.readline()) print 2 * tri(3 * n - 2) - hex(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> FILE *in, *out; int main() { int i, a, b, c = 1, say = 0, q; long long n = 1; char dixi[100000]; scanf("%d", &a); if (a == 1) { printf("1"); return 0; } for (i = 1; i < a; i++) n += 12 * i; printf("%I64d", 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
k = int(raw_input()) print sum((i + 1) * 6 + (i - 1) * 6 for i in xrange(k)) + 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
n = int(input()) m = n-1 n = 1+3*m print(n*(n+1)//2 + 3*(m*(m+1)//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
x=int(input()) if(x==1): print(1) elif(x==0): print(0) else: u=1 plus=0 for i in range(x-1): plus+=2 u+=6*plus print(u)
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.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class B { public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTo...
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; signed main() { long long int n; cin >> n; cout << 6 * (n) * (n - 1) + 1 << "\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; long long a; string b; int main() { 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
#include <bits/stdc++.h> using namespace std; int toInt(string s) { int r = 0; istringstream sin(s); sin >> r; return r; } long long toInt64(string s) { long long r = 0; istringstream sin(s); sin >> r; return r; } double toDouble(string s) { double r = 0; istringstream sin(s); sin >> r; return r...
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 v = 6 * n * (n - 1); cout << v + 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.util.Scanner; public class Star { Scanner in =new Scanner(System.in); public static void main(String args[]){ new Star().go(); } public void go(){ int count=1; int prev=0; int a=in.nextInt(); for(int i=...
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=int(input()) print(a*(a-1)*6+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 s[18257 + 1]; int main() { memset(s, 0, sizeof(s)); s[1] = 1; for (int i = 2; i <= 18257; i++) { s[i] = (2 * i - 3) * 6 + 6; } int a; scanf("%d", &a); if (a == 1) { cout << s[1] << endl; } else { int sum = 0; for (int i = 1; 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
n=int(input()) a=[0]*n a[0]=1 for i in range(1,n): a[i]=a[i-1]+(6*(i*2)) print(a[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> int main() { int a, b, c, d, sum = 1; scanf("%d", &a); if (a == 1) printf("1"); else { for (b = 1; b < a; b++) sum += (b * 12); printf("%d", 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> using namespace std; int main(void) { int A, R; cin >> A; R = (6 * A) * (A - 1) + 1; cout << R << 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.*; import java.io.*; public class j { public static void main(String[] args) throws Exception { Scanner input = new Scanner(System.in); PrintWriter out = new PrintWriter(System.out); int n = input.nextInt(); out.println((long)6*n*n-6*n+1); out.close(); } }
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; while (scanf("%d", &a) != EOF) { long long ans(1), dx(3); for (int i = 2; i <= a; ++i) { ans += 6 * dx - 6; dx += 2; } printf("%I64d\n", 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
n = input() print n*(n-1)*6+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 main() { int n; scanf("%d", &n); int ret = n * (n - 1) / 2; ret = 1 + 12 * ret; printf("%d\n", ret); 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; const int MOD = 1e9 + 7; int main() { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); long long amount[18258]; amount[1] = 1; for (int i = 2; i < 18258; i++) { amount[i] = amount[i - 1] + (i - 1) * 12; } int n; while (cin >> n) { cout << amo...
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; cout << 6 * n * n - 6 * n + 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 star(long long int n); int main() { long long int n; cin >> n; cout << star(n) << endl; return 0; } int star(long long int n) { if (n == 1) return 1; return ((n * 12) - 12) + star(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() { ios::sync_with_stdio(false), cin.tie(0); ; int i, a; long long A[18258]; A[1] = 1; for (i = 2; i < 18258; i++) A[i] = A[i - 1] + 12 * (i - 1); cin >> a; cout << A[a]; }
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
# -*- coding: utf-8 -*- a = int(raw_input()) def f(n): return (2*n-1)*3 + (2*n-3)*3 res = 1 for i in xrange(2, a+1): res += f(i) print res
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 a, b; scanf("%d", &a); b = 1 + 6 * a * (a - 1); printf("%d\n", b); return 0; }
CPP