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

int main() {
  int n, m;
  cin >> n >> m;
  if(n % 2 == 1 && m >= 10 && m % 2 == 0){
    cout << "Yes" << endl;
  }
  else if(n % 2 == 0 && m % 2 == 0){
      cout << "Yes" << endl;
    }
  else{
  cout << "No" << endl;
  }
}