#include <iostream> using namespace std; int main() { int m, n; cin >> m >> n; int flag = 0; for(int i = 1;i < 10000;i++) { for(int j = 1;j < 10000;j++) { if(i + j == m&& i * j == n ) { cout << "Yes" << endl; flag = 1; break; } } } if(flag == 0) { cout << "No" << endl; } return 0; }