import java.util.Scanner;

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) || y > (4*x)) {
          System.out.println("No");
        } else {
          System.out.println("Yes");
        }
    }
} import java.util.Scanner; Scanner 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) || y > (4*x)) {
          System.out.println("No");
        } else {
          System.out.println("Yes");
        }
    }
} 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) || y > (4*x)) {
          System.out.println("No");
        } else {
          System.out.println("Yes");
        }
    } main {
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        int y = sc.nextInt();
        if (y % 2 != 0 || y < (2*x) || y > (4*x)) {
          System.out.println("No");
        } else {
          System.out.println("Yes");
        }
    } 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) || y > (4*x)) {
          System.out.println("No");
        } else {
          System.out.println("Yes");
        } y % 2 != 0 || y < (2*x) || y > (4*x) y % 2 != 0 || y < (2*x) || y > (4*x) y % 2 != 0 y % 2 y 2 0 y < (2*x) y (2*x) 2 x y > (4*x) y (4*x) 4 x {
          System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" {
          System.out.println("Yes");
        } System.out.println("Yes") System.out.println System.out System System.out "Yes" 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) || y > (4*x)) {
          System.out.println("No");
        } else {
          System.out.println("Yes");
        }
    }
} 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) || y > (4*x)) {
          System.out.println("No");
        } else {
          System.out.println("Yes");
        }
    }
} Main
import java.util.Scanner;

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) || y > (4*x)) {
          System.out.println("No");
        } else {
          System.out.println("Yes");
        }
    }
}