import java.util.Scanner;
public class Main {
	public static void main(String[] args){
		
		Scanner in = new java.util.Scanner(System.in);
		int X = in.nextInt();
		int Y = in.nextInt();
		int B = Y - 2*X;
		if(B>=0 &&  B%2==0) {
			int b = B/2;
			if(X-b >= 0) {
				System.out.println("Yes");
				System.exit(0);
			}
		}
		System.out.println("No");
		
		in.close();
	}
}

/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