import java.util.Scanner;

public class Main {
	private static final String YES = "Yes";
	private static final String NO = "No";
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int x = sc.nextInt();
		int y = sc.nextInt();
		
		boolean valid = (2*x <= y && y <= 4*x) && y%2 == 0;
		System.out.println(valid ? YES : NO);
	}

}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz