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

void solve(){
	ll a, b;
	cin >> a;
	b = 1LL << 40;
	ll ma = a + b - 1;
	ll mi = b - a + 1;
	cout << ma - mi + 1 << endl;
}

int main(){
	solve();
}