import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Main main = new Main();
		main.solve();
	}

	void solve() {
		Scanner sc = new Scanner(System.in);
		String n = sc.next();
		String m = sc.next();
		sc.close();
	 	int nlen = n.length();
		int mlen = m.length();

		int end_n = Integer.parseInt(n.substring(nlen-1, nlen));
		int end_m = Integer.parseInt(m.substring(mlen-1, mlen));
		if(end_n == 0)end_n+=2;
		if(end_m == 0)end_m+=2;


		boolean f = false;
		if(end_m%2==1)f=false;
		else if(end_n%2==0&&end_m%2==0)f=true;
		else if(mlen > 1)f = true;
		
		System.out.println(f?"Yes":"No");;
	}

}