import java.util.*;
public class Main{

     public static void main(String []args){
        
        Scanner sc=new Scanner(System.in);
        int x=sc.nextInt();
        int y=sc.nextInt();
        int temp=y;
        if(y%2==0 && y>=(x*2))
        {
            
            if(y<=x*4)
            System.out.print("Yes");
            else
            System.out.print("No");
        }
else
      System.out.print("No");   
     }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz