#include <algorithm>
#include <iostream>
#include <iomanip>
#include <limits.h>
#include <map>
#include <math.h>
#include <numeric>
#include <queue>
#include <set>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include <stack>

using namespace std;
#define rep(i, n) for (int i = 0; i < n; i++)
#define rep1(i, n) for (int i = 1; i < n + 1; i++)
#define all(A) A.begin(), A.end()
#define itr(A, l, r) A.begin() + l, A.begin() + r
#define debug(var) cout << #var << " = " << var << endl;
typedef long long ll;

int main(void)
{
    int n;
    cin >> n;
    int ans = 0;
    rep(t, n / 5 + 1)
    {
        rep(g, n / 2 + 1)
        {
            rep(pg, n / 3 + 1)
            {
                if (t < g)
                {
                    continue;
                }
                int score = 5 * t + 2 * g + 3 * pg;
                if(score == n){
                    ans++;
                }
            }
        }
    }
    cout << ans << endl;
}