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 && 2*x<=y && y<=4*x) {
			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) {
		Scanner sc = new Scanner(System.in);
		int x=sc.nextInt();
		int y=sc.nextInt();
		
		if(y%2==0 && 2*x<=y && y<=4*x) {
			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 && 2*x<=y && y<=4*x) {
			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 && 2*x<=y && y<=4*x) {
			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 && 2*x<=y && y<=4*x) {
			System.out.println("Yes");
		}
		else {
			System.out.println("No");
		} y%2==0 && 2*x<=y && y<=4*x y%2==0 && 2*x<=y && y<=4*x y%2==0 y%2 y 2 0 2*x<=y 2*x 2 x y y<=4*x y 4*x 4 x {
			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 && 2*x<=y && y<=4*x) {
			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 && 2*x<=y && y<=4*x) {
			System.out.println("Yes");
		}
		else {
			System.out.println("No");
		}
		
	}
} 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 && 2*x<=y && y<=4*x) {
			System.out.println("Yes");
		}
		else {
			System.out.println("No");
		}
		
	}
}
