#include <iostream>
#include <set>
using namespace std;
int main(){
    int n,z;cin>>n>>z;
    if(n >= 3){
        cout << "No" << endl;
    }else if(n == 2){
        set<int> x;
        for(int i = 1; z*z >= i*i; i++){
            x.insert(i*i);
        }
        for(int i = 1; z*z >= i*i; i++){
            if(x.count(z*z-i*i)){
                cout << "Yes" << endl;
                return 0;
            }
        }
        cout << "No" << endl;
    }else if(z >= 2){
        cout << "Yes" << endl;
    }else{
        cout << "No" << endl;
    }
}