'''simple docstring'''

from __future__ import annotations



def snake_case_      (					__snake_case  :							list[int])			->					bool:
   return len(set(__snake_case)) == len(__snake_case)


if __name__ == "__main__":
 import doctest

 doctest.testmod()






'''simple docstring'''

def snake_case_      (					__snake_case  :							int	,   __snake_case  :							int	,   __snake_case  :							int)			->					float:
   lowerCAmelCase_			=      (num_of_terms / 2) * (2 * first_term + (num_of_terms - 1) * common_diff)
   # formula for sum of series
   return total



def snake_case_      (					)			->					str:
   print(sum_of_series(1	,   1	,   10))


if __name__ == "__main__":
 import doctest

 doctest.testmod()





