import java.util.*;
 
public class Main {
	public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int leg = sc.nextInt();
        if(leg % 2 == 1){
        	System.out.println("No");
        }else if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        }
	}
} import java.util.*; util.* java public class Main {
	public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int leg = sc.nextInt();
        if(leg % 2 == 1){
        	System.out.println("No");
        }else if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        }
	}
} Main public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int leg = sc.nextInt();
        if(leg % 2 == 1){
        	System.out.println("No");
        }else if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        }
	} main {
		Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int leg = sc.nextInt();
        if(leg % 2 == 1){
        	System.out.println("No");
        }else if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        }
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int leg = sc.nextInt(); leg sc.nextInt() sc.nextInt sc if(leg % 2 == 1){
        	System.out.println("No");
        }else if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        } leg % 2 == 1 leg % 2 leg 2 1 {
        	System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        } leg < 2 * n leg 2 * n 2 n {
        	System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        } leg > 4 * n leg 4 * n 4 n {
        	System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" {
        	System.out.println("Yes");
        } System.out.println("Yes") System.out.println System.out System System.out "Yes" String[] args args public class Main {
	public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int leg = sc.nextInt();
        if(leg % 2 == 1){
        	System.out.println("No");
        }else if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        }
	}
} public class Main {
	public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int leg = sc.nextInt();
        if(leg % 2 == 1){
        	System.out.println("No");
        }else if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        }
	}
} Main
import java.util.*;
 
public class Main {
	public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int leg = sc.nextInt();
        if(leg % 2 == 1){
        	System.out.println("No");
        }else if(leg < 2 * n){
        	System.out.println("No");
        }else if(leg > 4 * n){
        	System.out.println("No");
        }else{
        	System.out.println("Yes");
        }
	}
}