// yukicoder No.1256
#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n;
    cin >> n;

    bool flag = false;

    for (int i = 98; i < n; ++i) {
        int tmp = 3 * i + 3;
        if (tmp > n) break;
        else if (tmp == n) {
            flag = true;
            break;
        }
        else continue;
    }

    if(flag) cout << "YES" << "\n";
    else cout << "NO" << "\n";

    return 0;
}