#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
    ll M;
    cin >> M;
    ll t = 1;
    for (int i = 0; i < 128; i++)
    {
        t *= 2;
        t %= M;
    }
    cout << t << "\n";
    return 0;
}