#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  bool vi[1002];
  memset(vi, 0, sizeof vi);
  int a = 0, i = 0;
  while (i < n) {
    a = (a + i % n) % n;
    if (vi[a]) {
      cout << "NO" << endl;
      return 0;
    };
    vi[a] = 1;
    i++;
  }
  cout << "YES" << endl;
}
