





def 				__UpperCamelCase  (		snake_case = 1_0_0     )  ->						int:


   '''simple docstring'''







   __A				 =       [[0 for _ in range(snake_case     )] for _ in range(m + 1     )]
   for i in range(m + 1     ):
      __A				 =       1

   for n in range(m + 1     ):
      for k in range(1    ,	snake_case     ):
         memo[n][k] += memo[n][k - 1]
         if n > k:
            memo[n][k] += memo[n - k - 1][k]

   return memo[m][m - 1] - 1


if __name__ == "__main__":
     print(solution(int(input("""Enter a number: """).strip())))








def 				__UpperCamelCase  (		snake_case = 1_0_0     )  ->						int:


   '''simple docstring'''







   __A				 =       [[0 for _ in range(snake_case     )] for _ in range(m + 1     )]
   for i in range(m + 1     ):
      __A				 =       1

   for n in range(m + 1     ):
      for k in range(1    ,	snake_case     ):
         memo[n][k] += memo[n][k - 1]
         if n > k:
            memo[n][k] += memo[n - k - 1][k]

   return memo[m][m - 1] - 1


if __name__ == "__main__":
    print(solution(int(input("""Enter a number: """).strip())))

