
'''simple docstring'''





from __future__ import annotations







def snake_case_    (				lowercase__      ,					lowercase__		):
  UpperCAmelCase__			:				dict[int, int]												=       {}
  for index, val in enumerate(lowercase__		):
    UpperCAmelCase__			:				Optional[int]												=       target - val
    if compl in chk_map:
      return [chk_map[compl], index]
    UpperCAmelCase__			:				str												=       index
  return []


if __name__ == "__main__":
      import doctest

      doctest.testmod()
      print(F'{two_sum([2, 7, 1_1, 1_5], 9) = }')





'''simple docstring'''





def snake_case_    (				lowercase__      ,					lowercase__ = 1_3		):
  UpperCAmelCase__			:				Optional[Any]												=       ""
  for c in s:
    if "A" <= c <= "Z":
      out += chr(ord("A"		) + (ord(lowercase__		) - ord("A"		) + n) % 2_6		)
    elif "a" <= c <= "z":
      out += chr(ord("a"		) + (ord(lowercase__		) - ord("a"		) + n) % 2_6		)
    else:
      out += c
  return out







def snake_case_    (				):
  UpperCAmelCase__			:				Dict												=       input("Enter message: "		)

  UpperCAmelCase__			:				Optional[int]												=       dencrypt(lowercase__      ,					1_3		)
  print("Encryption:"      ,					lowercase__		)

  UpperCAmelCase__			:				Union[str, Any]												=       dencrypt(lowercase__      ,					1_3		)
  print("Decryption: "      ,					lowercase__		)


if __name__ == "__main__":
      import doctest

      doctest.testmod()
      main()



