import java.util.Scanner;

public class Main {
	public static void main(String args[]) {
		Scanner n = new Scanner(System.in);

		int X = n.nextInt();
		int Y = n.nextInt();

		if(Y % 2 != 0 || (X*4) < Y || (X*2) > Y) {
			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 n = new Scanner(System.in);

		int X = n.nextInt();
		int Y = n.nextInt();

		if(Y % 2 != 0 || (X*4) < Y || (X*2) > Y) {
			System.out.println("No");
		}else {
			System.out.println("Yes");
		}
	}
} Main public static void main(String args[]) {
		Scanner n = new Scanner(System.in);

		int X = n.nextInt();
		int Y = n.nextInt();

		if(Y % 2 != 0 || (X*4) < Y || (X*2) > Y) {
			System.out.println("No");
		}else {
			System.out.println("Yes");
		}
	} main {
		Scanner n = new Scanner(System.in);

		int X = n.nextInt();
		int Y = n.nextInt();

		if(Y % 2 != 0 || (X*4) < Y || (X*2) > Y) {
			System.out.println("No");
		}else {
			System.out.println("Yes");
		}
	} Scanner n = new Scanner(System.in); n new Scanner(System.in) int X = n.nextInt(); X n.nextInt() n.nextInt n int Y = n.nextInt(); Y n.nextInt() n.nextInt n if(Y % 2 != 0 || (X*4) < Y || (X*2) > Y) {
			System.out.println("No");
		}else {
			System.out.println("Yes");
		} Y % 2 != 0 || (X*4) < Y || (X*2) > Y Y % 2 != 0 || (X*4) < Y || (X*2) > Y Y % 2 != 0 Y % 2 Y 2 0 (X*4) < Y (X*4) X 4 Y (X*2) > Y (X*2) X 2 Y {
			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 n = new Scanner(System.in);

		int X = n.nextInt();
		int Y = n.nextInt();

		if(Y % 2 != 0 || (X*4) < Y || (X*2) > Y) {
			System.out.println("No");
		}else {
			System.out.println("Yes");
		}
	}
} public class Main {
	public static void main(String args[]) {
		Scanner n = new Scanner(System.in);

		int X = n.nextInt();
		int Y = n.nextInt();

		if(Y % 2 != 0 || (X*4) < Y || (X*2) > Y) {
			System.out.println("No");
		}else {
			System.out.println("Yes");
		}
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String args[]) {
		Scanner n = new Scanner(System.in);

		int X = n.nextInt();
		int Y = n.nextInt();

		if(Y % 2 != 0 || (X*4) < Y || (X*2) > Y) {
			System.out.println("No");
		}else {
			System.out.println("Yes");
		}
	}
}
