#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<iostream>
#include<cstdint>
#include<cstddef>
using namespace std;
using i32 = int_fast32_t;
using i64 = int_fast64_t;
using usize = uint_fast64_t;
#define rep(i, n) for (usize i = 0; i < (usize)(n); i++)
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
using P = pair<i64,i64>;

int main(){
ios::sync_with_stdio(false);
std::cin.tie(nullptr);
i32 n;
cin >> n;
i32 ans = 0;
for(i32 i = 0; 3 * i <= n; i++){
    for(i32 j = 0; j <= 20; j++){
        for(i32 k = 0; k <= j; k++){
            if(3 * i + j * 5 + k * 2 == n)ans++;
        }
    }
}
cout << ans << endl;
}