#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);

  ll M; cin >> M;
  ll ans = 1;
  for (int i = 0; i < 128; i++) {
    ans = (ans * 2) % M;
  }
  cout << ans << '\n';
  return 0;
}