#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef pair<ll,ll> P;
typedef vector<ll> VI;
typedef vector<VI> VVI;
const ll MOD = 1000000007;
const ll INF = 1e18;
#define REP(i,n) for(int i=0;i<n;i++)
#define ALL(v) v.begin(),v.end()

int main(){
    int n, z; cin >> n >> z;
    if(n>=3){
        cout << "No" << endl;
    }
    else if(n==2){
        for(int i=1;1;i++){
            int x=z*z-i*i;
            int y=sqrt(x);
            if(x<=0)
                break;
            if(x==y*y){
                cout << "Yes" << endl;
                return 0;
            }
        }
        cout << "No" << endl;
    }
    else{
        if(z>=2)
            cout << "Yes" << endl;
        else
            cout << "No" << endl;
    }
    return 0;
}