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

int main(){
  int n,z;
  cin >> n >> z;
  if(2<n) cout << "No" << endl;
  else if(n==1){
    int ans=0;
    for(int x=1;x<z;x++){
      int p=n*n-x*x;
      int q=sqrt(p);
      if(q*q==p) ans++;
    }
    if(ans) cout << "Yes" << endl;
    else cout << "No" << endl;
  }
  else{
    if(1<z) cout << "Yes" << endl;
    else cout << "No" << endl;
  }
}