#include<iostream>
using namespace std;
int main() {
	int N;
	int M;
	cin >> N >> M;
	if (M % 2 == 1) {
		cout << "No" << endl;
	}
	else if (N % 2 == 1) {
		if (M / 10 == 0) {
			cout << "No" << endl;
		}
		else {
			cout << "Yes" << endl;
		}
	}
	else {
		cout << "Yes" << endl;
	}
	return 0;
}