#include<stdio.h>
int main()
{
  int a[2];
  scanf("%d%d",&a[0],&a[1]);
  if(a[1]%2==0)
  {
    if(a[1]<=4*a[0])
      printf("Yes");
    else
      printf("No");
  }
  else
    printf("No");
  return 0;
}
        