#include <bits/stdc++.h>
using namespace std;

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

	int ans = 0;
	for( int t = 0; t <= N; t++ ) {
		for( int g = 0; g <= t; g++ ) {
			for( int pg = 0; pg * 3 <= N; pg++ ) {
				int s = t * 5 + g * 2 + pg * 3;
				if( s > N ) break;
				if( s == N ) ans++;
			}
		}
	}

	cout << ans << endl;
}