import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		}
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		}
	}
} Main public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		}
	} main {
		try (Scanner scanner = new Scanner(System.in)) {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		}
	} try (Scanner scanner = new Scanner(System.in)) {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		} {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		} Scanner scanner = new Scanner(System.in) Scanner scanner = new Scanner(System.in) new Scanner(System.in) int x = scanner.nextInt() x scanner.nextInt() scanner.nextInt scanner y = scanner.nextInt(); y scanner.nextInt() scanner.nextInt scanner System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No") System.out.println System.out System System.out ((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No" ((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) (x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1)) (x * 2 <= y) x * 2 x 2 y (x * 4 >= y) x * 4 x 4 y (0 == (y & 1)) 0 (y & 1) y 1 "Yes" "No" String[] args args public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		}
	}
} public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		}
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		try (Scanner scanner = new Scanner(System.in)) {
			int x = scanner.nextInt(), y = scanner.nextInt();
			System.out.println(((x * 2 <= y) && (x * 4 >= y) && (0 == (y & 1))) ? "Yes" : "No");
		}
	}
}
