#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstring>
#include <cstdlib>
#include <cmath>
using namespace std;
using ll = long long;

int main() {
    ll m;
    cin >> m;

    ll r = 1;
    for (int i = 0; i < 128; i++) {
        r = r * 2 % m;
    }

    cout << r << endl;

    return 0;
}