#include<bits/stdc++.h>

using namespace std;
using ll = long long;
inline int ri() { int n; cin >> n; return n;}


int main()
{
	int n = ri();
	int cnt = 0;
	for(int i = 0; i <= n; i++) {
		for(int j = 0; j <= i; j++) {
			for(int k = 0; k <= n; k++) {
				int sum = i * 5 + j * 2 + k * 3;
				if(sum == n) cnt++;
			}
		}
	}
	cout << cnt << endl;
}