
'''simple docstring'''





def 	snake_case_							(				_a  :				int = 100      ):
      snake_case_    							=				[[0 for _ in range(_a      )] for _ in range(m + 1      )]
      for i in range(m + 1      ):
            snake_case_    							=				1

      for n in range(m + 1      ):
            for k in range(1			,       _a      ):
                  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 						A_					(						lowercase_	,  lowercase_			)				->List[Any]:







 """simple docstring"""

 SCREAMING_SNAKE_CASE				    =		1
 while b > 0:
  if b & 1:
   res *= a

  a *= a
  b >>= 1

 return res





def 						A_					(						lowercase_	,  lowercase_	,  lowercase_			)				->Any:







 """simple docstring"""

 SCREAMING_SNAKE_CASE				    =		1
 while b > 0:
  if b & 1:
   SCREAMING_SNAKE_CASE				    =		((res % c) * (a % c)) % c

  a *= a
  b >>= 1

 return res




