package algo;

import java.util.Scanner;

public class sample7 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long N = sc.nextLong();
		long M = sc.nextLong();
		if ((100 * N + 10 * M) % 2 == 0) {
			System.out.println("Yes");
		}
		else {
			System.out.println("No");
		}
	}
}