#include<stdio.h>

int main(void){
  int hun,ten;
  scanf("%d",&hun);
  scanf("%d",&ten);

  if(ten%2==1)
    printf("NO\n");
  else if((hun%2==1 && ten>=10) || (hun%2==0 && ten%2==0)){
    printf("YES\n");
  }else{
    printf("NO\n");
  }
  return 0;
}