#include <stdio.h>

int main() {
  int n, m;
  scanf("%d %d", &n, &m);

  if (n%2==0) {
    if (m%2==0) {
      printf("Yes\n");
    } else ("No\n");
  } else {
    if ((m-10)%2==0 && m>=10) {
      printf("Yes\n");
    } else {
      printf("No\n");
    }
  }
  
  return 0;
}