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

int main() {
	int N; cin >> N;
	int ans = 0;
	rep(i, 100) rep(j, 100) rep(k, 100)
		if (i * 3 + j * 5 + k * 7 == N) ans++;
	cout << ans << endl;

	return 0;
}