"""simple docstring"""







def 						_lowercase				(  _SCREAMING_SNAKE_CASE				:				int = 1000						)    ->     int:







     '''simple docstring'''


     return sum(i for i in range(_SCREAMING_SNAKE_CASE						) if i % 3 == 0 or i % 5 == 0						)


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




"""simple docstring"""







def 						_lowercase				(  _SCREAMING_SNAKE_CASE				:				list[int]						)    ->     int:







     '''simple docstring'''


     if not isinstance(_SCREAMING_SNAKE_CASE  ,       _SCREAMING_SNAKE_CASE						) or not all(
         isinstance(_SCREAMING_SNAKE_CASE  ,       _SCREAMING_SNAKE_CASE						) and item >= 0 for item in citations						):
          raise ValueError('The citations should be a list of non negative integers.'						)

     citations.sort()
     __A					:					Any								=		len(_SCREAMING_SNAKE_CASE						)

     for i in range(_SCREAMING_SNAKE_CASE						):
          if citations[len_citations - 1 - i] <= i:
               return i

     return len_citations


if __name__ == "__main__":
       import doctest

       doctest.testmod()



