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


int main(){
    int N,M;cin >> N >> M;
    cout<<"Yes"<<endl;
    return 0;
    if(N%2 == 0 && M%2 == 0){
        cout<<"Yes"<<endl;
        return 0;
    }
    int s = M/10;
    if((s+N)%2 == 0 && (M%10)%2 == 0){
        cout<<"Yes"<<endl;
    }else{
        cout<<"No"<<endl;
    }
}