import java.util.*;

public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int x  = sc.nextInt();
        int y  = sc.nextInt();
        
        if(y % 2 != 0){
           System.out.println("No");
        }else if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        }
        
	}
} import java.util.*; util.* java public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int x  = sc.nextInt();
        int y  = sc.nextInt();
        
        if(y % 2 != 0){
           System.out.println("No");
        }else if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        }
        
	}
} Main public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int x  = sc.nextInt();
        int y  = sc.nextInt();
        
        if(y % 2 != 0){
           System.out.println("No");
        }else if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        }
        
	} main {

		Scanner sc = new Scanner(System.in);
        int x  = sc.nextInt();
        int y  = sc.nextInt();
        
        if(y % 2 != 0){
           System.out.println("No");
        }else if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        }
        
	} 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 if(y % 2 != 0){
           System.out.println("No");
        }else if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        } y % 2 != 0 y % 2 y 2 0 {
           System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        } (y == 2 || y == 4) && x == 1 (y == 2 || y == 4) y == 2 y 2 y == 4 y 4 x == 1 x 1 {
           System.out.println("Yes");
        } System.out.println("Yes") System.out.println System.out System System.out "Yes" {
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        } int kame = x*4-y; kame x*4-y x*4 x 4 y int turu = y-x*2; turu y-x*2 y x*2 x 2 if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          } kame >=0 && turu >=0 kame >=0 kame 0 turu >=0 turu 0 {
            System.out.println("Yes");
          } System.out.println("Yes") System.out.println System.out System System.out "Yes" {
            System.out.println("No");
          } System.out.println("No") System.out.println System.out System System.out "No" String[] args args public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int x  = sc.nextInt();
        int y  = sc.nextInt();
        
        if(y % 2 != 0){
           System.out.println("No");
        }else if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        }
        
	}
} public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int x  = sc.nextInt();
        int y  = sc.nextInt();
        
        if(y % 2 != 0){
           System.out.println("No");
        }else if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        }
        
	}
} Main
import java.util.*;

public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int x  = sc.nextInt();
        int y  = sc.nextInt();
        
        if(y % 2 != 0){
           System.out.println("No");
        }else if((y == 2 || y == 4) && x == 1){
           System.out.println("Yes");
        }else{
          int kame = x*4-y;
          int turu = y-x*2;
          if(kame >=0 && turu >=0 ){
            System.out.println("Yes");
          }else{
            System.out.println("No");
          }
        }
        
	}
}