#include <cmath>
#include <string>
#include <vector>
#include <iostream>
#include <algorithm>
#include <functional>
using namespace std;
int main() {
	long long N;
	cin >> N;
	long long ans = 1;
	for (int i = 0; i < 128; ++i) {
		ans = ans * 2 % N;
	}
	cout << ans << endl;
	return 0;
}