#include<stdio.h>
int main()
{
	int n, m;
	scanf("%d%d", &n, &m);
	if (n % 2 == 1)
	{
		if (m < 10)
			printf("No\n");
		else if (m % 2 == 0)
			printf("Yes\n");
		else
			printf("No\n");
	}
	else if (m % 2 == 1)
		printf("No\n");
	else
		printf("Yes\n");
	return 0;
}