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");   
     }
} import java.util.*; util.* java 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");   
     }
} 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");   
     } main {
        
        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");   
     } Scanner sc=new Scanner(System.in); sc new Scanner(System.in) int x=sc.nextInt(); x sc.nextInt() sc.nextInt sc int y=sc.nextInt(); y sc.nextInt() sc.nextInt sc int temp=y; 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"); y%2==0 && y>=(x*2) y%2==0 y%2 y 2 0 y>=(x*2) y (x*2) x 2 {
            
            if(y<=x*4)
            System.out.print("Yes");
            else
            System.out.print("No");
        } if(y<=x*4)
            System.out.print("Yes");
            else
            System.out.print("No"); y<=x*4 y x*4 x 4 System.out.print("Yes") System.out.print System.out System System.out "Yes" System.out.print("No") System.out.print System.out System System.out "No" System.out.print("No") System.out.print System.out System System.out "No" String []args args 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");   
     }
} 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");   
     }
} Main
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");   
     }
}