import java.util.Scanner;

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

		// 入力値の取得
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		boolean answer = true;
		if (Y % 2 == 1 || X * 4 < Y || X * 2 > Y) {
			answer = false;
		}
		
		// 結果の出力
		System.out.println(answer? "Yes" : "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);

		// 入力値の取得
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		boolean answer = true;
		if (Y % 2 == 1 || X * 4 < Y || X * 2 > Y) {
			answer = false;
		}
		
		// 結果の出力
		System.out.println(answer? "Yes" : "No");

		sc.close();
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		// 入力値の取得
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		boolean answer = true;
		if (Y % 2 == 1 || X * 4 < Y || X * 2 > Y) {
			answer = false;
		}
		
		// 結果の出力
		System.out.println(answer? "Yes" : "No");

		sc.close();
	} main {
		Scanner sc = new Scanner(System.in);

		// 入力値の取得
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		boolean answer = true;
		if (Y % 2 == 1 || X * 4 < Y || X * 2 > Y) {
			answer = false;
		}
		
		// 結果の出力
		System.out.println(answer? "Yes" : "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 boolean answer = true; answer true if (Y % 2 == 1 || X * 4 < Y || X * 2 > Y) {
			answer = false;
		} Y % 2 == 1 || X * 4 < Y || X * 2 > Y Y % 2 == 1 || X * 4 < Y || X * 2 > Y Y % 2 == 1 Y % 2 Y 2 1 X * 4 < Y X * 4 X 4 Y X * 2 > Y X * 2 X 2 Y {
			answer = false;
		} answer = false answer false System.out.println(answer? "Yes" : "No") System.out.println System.out System System.out answer? "Yes" : "No" answer "Yes" "No" sc.close() sc.close sc String[] args args public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		// 入力値の取得
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		boolean answer = true;
		if (Y % 2 == 1 || X * 4 < Y || X * 2 > Y) {
			answer = false;
		}
		
		// 結果の出力
		System.out.println(answer? "Yes" : "No");

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

		// 入力値の取得
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		boolean answer = true;
		if (Y % 2 == 1 || X * 4 < Y || X * 2 > Y) {
			answer = false;
		}
		
		// 結果の出力
		System.out.println(answer? "Yes" : "No");

		sc.close();
	}
} Main
import java.util.Scanner;

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

		// 入力値の取得
		int X = sc.nextInt();
		int Y = sc.nextInt();
		
		boolean answer = true;
		if (Y % 2 == 1 || X * 4 < Y || X * 2 > Y) {
			answer = false;
		}
		
		// 結果の出力
		System.out.println(answer? "Yes" : "No");

		sc.close();
	}
}
