



"""simple docstring"""
def      __magic_name__				(							lowercase							,			lowercase ):
   if len(lowercase ) != len(lowercase ):
      raise ValueError("""String lengths must match!""" )

   SCREAMING_SNAKE_CASE_: List[Any]     			=0

   for chara, chara in zip(lowercase							,			lowercase ):
      if chara != chara:
         count += 1

   return count


if __name__ == "__main__":
   import doctest

   doctest.testmod()








"""simple docstring"""
from math import pi





def      __magic_name__				(							lowercase							,			lowercase ):
   return 2 * pi * radius * (angle / 360)


if __name__ == "__main__":
   print(arc_length(9_0, 1_0))



