#define _USE_MATH_DEFINES

#include <iostream>	//cin, cout
#include <vector>	//vector
#include <algorithm> //sort,min,max,count
#include <string>	//string,getline, to_string
#include <ios>		//fixed
#include <iomanip>	//setprecision
#include <utility> //swap, pair
#include <cstdlib>	//abs(int)
#include <cmath>	//sqrt,ceil,M_PI, pow, sin
#include <sstream>	//stringstream,getline
#include <numeric>	//gcd, accumlate
#include <deque>	//deque
#include <random>	//randam_device
#include <limits>	//numeric_limits

using namespace std;
constexpr long long int D_MOD = 1000000007;

int main() {

	int N;
	cin >> N;

	int i = 0, j = 0, k = 0, ans = 0;

	i = 0;
	while (i * 5 + j * 2 + k * 3 <= N) {
		while (i * 5 + j * 2 + k * 3 <= N) {
			while (i * 5 + j * 2 + k * 3 <= N) {
				if (i * 5 + j * 2 + k * 3 == N && i >= j) {
					ans++;
				}
				k++;
			}
			k = 0;
			j++;
		}
		j = 0;
		i++;
	}

	cout << ans << endl;

	return 0;

}