#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < (n); i++)

using namespace std;

int main() {
    int A[] = {-1, 0, 0, 1, 1, 2, 3, 5, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11};
    int n;
    cin >> n;
    cout << A[n] << endl;
    return 0;
}