#include <bits/stdc++.h>
 
using namespace std;
 
signed main()
{
    int n;
    cin >> n;
    if (n == 1) {
        cout << 7 << endl;
    } else if (n == 5) {
        cout << 5 << endl;
    } else if (n == 4) {
        cout << 2 << endl;
    } else if (n == 2) {
        cout << 3 << endl;
    } else {
        cout << 4 << endl;
    }

    return 0;
}