import java.util.*;

class Main
{
    public  static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        
        int y = sc.nextInt();
        int x = sc.nextInt();
        
        if (x % 2 != 0 || x < 2 * y || x > 4 * y) {
            System.out.println("No");
            return;
        }
        
        System.out.println("Yes");
        
    }
} import java.util.*; util.* java class Main
{
    public  static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        
        int y = sc.nextInt();
        int x = sc.nextInt();
        
        if (x % 2 != 0 || x < 2 * y || x > 4 * y) {
            System.out.println("No");
            return;
        }
        
        System.out.println("Yes");
        
    }
} Main public  static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        
        int y = sc.nextInt();
        int x = sc.nextInt();
        
        if (x % 2 != 0 || x < 2 * y || x > 4 * y) {
            System.out.println("No");
            return;
        }
        
        System.out.println("Yes");
        
    } main {
        Scanner sc = new Scanner(System.in);
        
        int y = sc.nextInt();
        int x = sc.nextInt();
        
        if (x % 2 != 0 || x < 2 * y || x > 4 * y) {
            System.out.println("No");
            return;
        }
        
        System.out.println("Yes");
        
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int y = sc.nextInt(); y sc.nextInt() sc.nextInt sc int x = sc.nextInt(); x sc.nextInt() sc.nextInt sc if (x % 2 != 0 || x < 2 * y || x > 4 * y) {
            System.out.println("No");
            return;
        } x % 2 != 0 || x < 2 * y || x > 4 * y x % 2 != 0 || x < 2 * y || x > 4 * y x % 2 != 0 x % 2 x 2 0 x < 2 * y x 2 * y 2 y x > 4 * y x 4 * y 4 y {
            System.out.println("No");
            return;
        } System.out.println("No") System.out.println System.out System System.out "No" return; System.out.println("Yes") System.out.println System.out System System.out "Yes" String[] args args
import java.util.*;

class Main
{
    public  static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        
        int y = sc.nextInt();
        int x = sc.nextInt();
        
        if (x % 2 != 0 || x < 2 * y || x > 4 * y) {
            System.out.println("No");
            return;
        }
        
        System.out.println("Yes");
        
    }
}