

from string import ascii_lowercase, ascii_uppercase






def 					__lowercase      (     _A			)     ->						str:
      if not sentence:
            return ""
      SCREAMING_SNAKE_CASE :      str       =   dict(zip(_A						,    _A			)			)
      return lower_to_upper.get(sentence[0]						,    sentence[0]			) + sentence[1:]


if __name__ == "__main__":
  from doctest import testmod

  testmod()







from math import ceil






def 					__lowercase      (     _A = 1001			)     ->						int:
      SCREAMING_SNAKE_CASE :      Union[str, Any]       =   1

      for i in range(1						,    int(ceil(n / 2.0			)			)			):
            SCREAMING_SNAKE_CASE :      Dict       =   2 * i + 1
            SCREAMING_SNAKE_CASE :      Optional[int]       =   2 * i
            SCREAMING_SNAKE_CASE :      str       =   total + 4 * odd**2 - 6 * even

      return total


if __name__ == "__main__":
  import sys

  if len(sys.argv) == 1:
    print(solution())
  else:
    try:
      UpperCAmelCase__ :     str				    =    int(sys.argv[1])
      print(solution(n))
    except ValueError:
      print("""Invalid entry - please enter a number""")




