#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
#include<iomanip>
using namespace std;

int main(){
    int n, m;
    cin >> n >> m;
    cout << (((!(n%2) && !(m%2)) || ((n%2) && (m >= 10) && !(m%2))) ? "Yes" : "No") << endl;
}