#include <iostream>
#include <algorithm>

using namespace std;

int main() {
    int N;
    cin >> N;

    int ans = 0;
    for (int i = 0; i <= 20; i++) {
        for (int j = 0; j <= i; j++) {
            for (int k = 0; k <= (N - i * 5 - j * 2) / 3; k++) {
                int sum = i * 5 + j * 2 + k * 3;
                if (sum == N) {
                    ans++;
                }
            }
        }
    }

    cout << ans << endl;
}