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((X*2<=Y)&&(Y<=X*4)&&(Y%2==0)) {
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		sc.close();
	}

} 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((X*2<=Y)&&(Y<=X*4)&&(Y%2==0)) {
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		sc.close();
	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		if((X*2<=Y)&&(Y<=X*4)&&(Y%2==0)) {
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		sc.close();
	} main {
		Scanner sc = new Scanner(System.in);
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		if((X*2<=Y)&&(Y<=X*4)&&(Y%2==0)) {
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		sc.close();
	} 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((X*2<=Y)&&(Y<=X*4)&&(Y%2==0)) {
			System.out.println("Yes");
		}else {
			System.out.println("No");
		} (X*2<=Y)&&(Y<=X*4)&&(Y%2==0) (X*2<=Y)&&(Y<=X*4)&&(Y%2==0) (X*2<=Y) X*2 X 2 Y (Y<=X*4) Y X*4 X 4 (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" sc.close() sc.close sc 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((X*2<=Y)&&(Y<=X*4)&&(Y%2==0)) {
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		sc.close();
	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		if((X*2<=Y)&&(Y<=X*4)&&(Y%2==0)) {
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		sc.close();
	}

} 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((X*2<=Y)&&(Y<=X*4)&&(Y%2==0)) {
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		sc.close();
	}

}