#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int main() {
	int n;
	cin >> n;
	int co = 0;
	for (int i = 0; i <= n; i++) {
		for (int j = 0; j <= i; j++) {
			for (int k = 0; k <= n; k++) {
				if (i * 5 + j * 2 + k * 3 == n) {
					co++;
				}
			}
		}
	}
	cout << co << endl;
}