#include<bits/stdc++.h> using namespace std; int main(){ queue q; int n; cin>>n; for(int i=1;i<=n;i++){ q.push(i); } while(q.size()>1){ q.push(q.front()); q.pop(); q.push(q.front()); q.pop(); q.pop(); } cout<<q.front(); return 0; }