#include <bits/stdc++.h>   #pragma comment(linker,  /STACK:1024000000,1024000000 )   using namespace std;   int main() {     cin.tie(0);     ios::sync_with_stdio(false);     int n, w;     cin >> w >> n;     if (w <= 3) {       cout <<  YES  << endl;       return 0;     }     while (n > 0) {       if (n % w > 1 && n % w < w - 1) {         cout <<  NO  << endl;         return 0;       }       n = (n + 1) / w;     }     cout <<  YES  << endl;     return 0;   }   