import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
      int total=sc.nextInt();
      int totalleg=sc.nextInt();
      if(totalleg>=2*total&&totalleg<=4*total&&totalleg%2==0){
         System.out.println("Yes");
      }else{
         System.out.println("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