#include<bits/stdc++.h> using namespace std; int n,faction=1; int main(){ queue<int> myQueue; cin>>n; for(int i=1;i<=n;i++) myQueue.push(i); while(myQueue.size()!=1){ if(faction!=3){ myQueue.push(myQueue.front()); myQueue.pop(); faction++; } else{ myQueue.pop(); faction=1; } } cout<<myQueue.front(); }