import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scn = new Scanner(System.in);
		int x = scn.nextInt();
		int y = scn.nextInt();
		int p = x * 2;
		int q = x * 4;
		if ((y >= p) && (y <= q) && ((y % 2) == 0)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scn = new Scanner(System.in);
		int x = scn.nextInt();
		int y = scn.nextInt();
		int p = x * 2;
		int q = x * 4;
		if ((y >= p) && (y <= q) && ((y % 2) == 0)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} Main public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scn = new Scanner(System.in);
		int x = scn.nextInt();
		int y = scn.nextInt();
		int p = x * 2;
		int q = x * 4;
		if ((y >= p) && (y <= q) && ((y % 2) == 0)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} main {
		// TODO Auto-generated method stub
		Scanner scn = new Scanner(System.in);
		int x = scn.nextInt();
		int y = scn.nextInt();
		int p = x * 2;
		int q = x * 4;
		if ((y >= p) && (y <= q) && ((y % 2) == 0)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} Scanner scn = new Scanner(System.in); scn new Scanner(System.in) int x = scn.nextInt(); x scn.nextInt() scn.nextInt scn int y = scn.nextInt(); y scn.nextInt() scn.nextInt scn int p = x * 2; p x * 2 x 2 int q = x * 4; q x * 4 x 4 if ((y >= p) && (y <= q) && ((y % 2) == 0)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		} (y >= p) && (y <= q) && ((y % 2) == 0) (y >= p) && (y <= q) && ((y % 2) == 0) (y >= p) y p (y <= q) y q ((y % 2) == 0) (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) {
		// TODO Auto-generated method stub
		Scanner scn = new Scanner(System.in);
		int x = scn.nextInt();
		int y = scn.nextInt();
		int p = x * 2;
		int q = x * 4;
		if ((y >= p) && (y <= q) && ((y % 2) == 0)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} public class Main {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scn = new Scanner(System.in);
		int x = scn.nextInt();
		int y = scn.nextInt();
		int p = x * 2;
		int q = x * 4;
		if ((y >= p) && (y <= q) && ((y % 2) == 0)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scn = new Scanner(System.in);
		int x = scn.nextInt();
		int y = scn.nextInt();
		int p = x * 2;
		int q = x * 4;
		if ((y >= p) && (y <= q) && ((y % 2) == 0)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}
}