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();

		System.out.println(y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "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();

		System.out.println(y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "No" );
	}
} Main public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		System.out.println(y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "No" );
	} main {

		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		System.out.println(y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "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 System.out.println(y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "No" ) System.out.println System.out System System.out y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "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 "Yes" "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();

		System.out.println(y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "No" );
	}
} public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		int y = sc.nextInt();

		System.out.println(y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "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();

		System.out.println(y%2==0 && 2*x<=y && y<=4*x ? "Yes" : "No" );
	}
}