#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  cin >> N;
  int ans = 0;
  for (int i = 0; i <= N; i++){
    for (int j = 0; j <= i; j++){
      for (int k = 0; k <= N; k++){
        if (i * 5 + j * 2 + k * 3 == N){
          ans++;
        }
      }
    }
  }
  cout << ans << endl;
}