#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
#define rep(i,s,e) for(int (i) = (s);(i) <= (e);(i)++)

i64 N;

int main(){
  cin >> N;
  for(int i= 30;i >= 0;i--){
    i64 now = (1LL << i) - 1;
    if(now <= N) N -= now;
  }

  if(N == 0){
    cout << "YES" << endl;
  }
  else{
    cout << "NO" << endl;
  }
}