


def SCREAMING_SNAKE_CASE	(			__lowerCAmelCase = 100				)    ->				int:
  snake_case__						= (n * (n + 1) // 2) ** 2
  snake_case__						= n * (n + 1) * (2 * n + 1) // 6
  return sum_cubes - sum_squares


if __name__ == "__main__":
   print(F"""{solution() = }""")


"""simple docstring"""






def      UpperCAmelCase__			(							lowerCAmelCase__	:int = 5_0						)					->       int:
      '''simple docstring'''


      lowercase								=      [1] * (length + 1)

      for row_length in range(3   ,						length + 1						):
            for block_length in range(3   ,						row_length + 1						):
                  for block_start in range(row_length - block_length						):
                        ways_number[row_length] += ways_number[
                            row_length - block_start - block_length - 1
                        ]

                  ways_number[row_length] += 1

      return ways_number[length]


if __name__ == "__main__":
       print(F"""{solution() = }""")



