#include <bits/stdc++.h>
using namespace std;
#define int unsigned long long
signed main() {
	int s, p, n, m;
    cin >> s >> p;
    for(int i = 1; i * i <= p; i++){
        n = i, m = p / i;
        if(m + n == s){
            cout << "Yes";
            return 0;
        }
    }
    cout << "No";
}