#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;

int main() {
    ll N;
    cin >> N;
    ll ans = 0;

    rep(i, 100) rep(j, i + 1) rep(k, 100) {
        if (i * 5 + j * 2 + k * 3 == N) {
            ans++;
        }
    }
    cout << ans << endl;

    return 0;
}