#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < n; i++)
using ll = long long;
ll comb(ll a, ll b){
  ll ans = 1;
  for(int i=1;i<=b;i++){
    ans = ans * a / i;
    a--;
  }
/*  for(int i=1;i<=b;i++){
    ans = ans / i;
  }*/
  return ans;
}
int main()
{
  ll L; cin >> L;
  cout << comb(L-1,11)<< endl;
}

#include <iostream>
#include <vector>
#include <cstdint>

int main() {
  constexpr int N = 12;
  int L;
  std::cin >> L;
  std::vector<std::vector<std::int64_t>> counts(L + 1, std::vector<std::int64_t>(N + 1));
  counts[0][0] = 1;
  for (int i = 1; i <= L; ++i) {
    for (int j = 0; j < i; ++j) {
      for (int k = 1; k <= N; ++k) {
        counts[i][k] += counts[j][k - 1];
      }
    }
  }
  std::cout << counts[L][N] << std::endl;
  return 0;
}
