#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
signed main() {
  ios::sync_with_stdio(false); cin.tie(0);
  string n, m;
  cin >> n >> m;
  int a = n.back() - '0', b = m.back() - '0';
  if (b % 2 == 1) {
    cout << "No" << endl;
    return 0;
  }
  if (a % 2 == 0) {
    cout << "Yes" << endl;
  } else {
    if ((int) m.length() > 1) cout << "Yes" << endl;
    else cout << "No" << endl;
  }
  return 0;	
}