#include "bits/stdc++.h"
using namespace std;

int main() {
    int N;
    cin >> N;

    for(int i = 30; i > 0; i--) {
        long long x = (1 << i) - 1;
        if(N >= x) N -= x;
    }

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

    return 0;
}