#include <bits/stdc++.h>
using namespace std;
int main() {
  int w, m;
  cin >> w >> m;
  if (m == 1 || w == 2) {
    cout << "YES" << endl;
    return 0;
  }
  while (m) {
    if (m % w == 1) {
      --m;
    } else if (m % w == w - 1) {
      ++m;
    }
    if (m % w == 0) {
      m /= w;
    } else {
      cout << "NO" << endl;
      return 0;
    }
  }
  cout << "YES" << endl;
  return 0;
}
