"""simple docstring"""





from string import ascii_lowercase, ascii_uppercase





def        a_  (   _lowerCAmelCase						:				List[str]  ):





       '''simple docstring'''

       if not sentence:
              return ""
       lowercase__    :	List[str]     					=			dict(zip(__SCREAMING_SNAKE_CASE     ,				__SCREAMING_SNAKE_CASE  )  )
       return lower_to_upper.get(sentence[0]     ,				sentence[0]  ) + sentence[1:]


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

       testmod()
"""simple docstring"""





import math





def        a_  (   _lowerCAmelCase						:				int = 100  ):





       '''simple docstring'''

       lowercase__    :	Union[str, Any]     					=			sum(i * i for i in range(1     ,				n + 1  )  )
       lowercase__    :	str     					=			int(math.pow(sum(range(1     ,				n + 1  )  )     ,				2  )  )
       return square_of_sum - sum_of_squares


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

