# Write a Python program to get a new string from a given string where "Is" has been added to the front. If the given string already begins with "Is" then return the string unchanged.  
def new_string(str):
  if len(str) >= 2 and str[:2] == "Is":
    return str
  return "Is" + str

print(new_string("Array"))
print(new_string("IsEmpty"))
