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();
        if(Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0){
            System.out.println("Yes");
        }else{
            System.out.println("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();
        if(Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }
    
        }
    } Main public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
        int X = sc.nextInt();
        int Y = sc.nextInt();
        if(Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }
    
        } main {
		Scanner sc = new Scanner(System.in);
        int X = sc.nextInt();
        int Y = sc.nextInt();
        if(Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0){
            System.out.println("Yes");
        }else{
            System.out.println("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 if(Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        } Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0 Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0 Y%2==0 Y%2 Y 2 0 Y/2-X>=0 Y/2-X Y/2 Y 2 X 0 2*X-Y/2>=0 2*X-Y/2 2*X 2 X Y/2 Y 2 0 {
            System.out.println("Yes");
        } System.out.println("Yes") System.out.println System.out System System.out "Yes" {
            System.out.println("No");
        } System.out.println("No") System.out.println 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();
        if(Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }
    
        }
    } public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
        int X = sc.nextInt();
        int Y = sc.nextInt();
        if(Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0){
            System.out.println("Yes");
        }else{
            System.out.println("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();
        if(Y%2==0 && Y/2-X>=0 && 2*X-Y/2>=0){
            System.out.println("Yes");
        }else{
            System.out.println("No");
        }
    
        }
    }