import java.util.*; 
import java.lang.*; 


public class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
                
                int X = scan.nextInt();
                int Y = scan.nextInt();
                
                if(Y%2==1){
                    System.out.println("No");
                }else{
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                }
        }
} import java.util.*; util.* java import java.lang.*; lang.* java public class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
                
                int X = scan.nextInt();
                int Y = scan.nextInt();
                
                if(Y%2==1){
                    System.out.println("No");
                }else{
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                }
        }
} Main public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
                
                int X = scan.nextInt();
                int Y = scan.nextInt();
                
                if(Y%2==1){
                    System.out.println("No");
                }else{
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                }
        } main {
		Scanner scan = new Scanner(System.in);
                
                int X = scan.nextInt();
                int Y = scan.nextInt();
                
                if(Y%2==1){
                    System.out.println("No");
                }else{
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                }
        } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int X = scan.nextInt(); X scan.nextInt() scan.nextInt scan int Y = scan.nextInt(); Y scan.nextInt() scan.nextInt scan if(Y%2==1){
                    System.out.println("No");
                }else{
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                } Y%2==1 Y%2 Y 2 1 {
                    System.out.println("No");
                } System.out.println("No") System.out.println System.out System System.out "No" {
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                } if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    } X*2<=Y && Y<=X*4 X*2<=Y X*2 X 2 Y Y<=X*4 Y X*4 X 4 {
                         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 scan = new Scanner(System.in);
                
                int X = scan.nextInt();
                int Y = scan.nextInt();
                
                if(Y%2==1){
                    System.out.println("No");
                }else{
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                }
        }
} public class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
                
                int X = scan.nextInt();
                int Y = scan.nextInt();
                
                if(Y%2==1){
                    System.out.println("No");
                }else{
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                }
        }
} Main
import java.util.*; 
import java.lang.*; 


public class Main{
	public static void main(String[] args){
		Scanner scan = new Scanner(System.in);
                
                int X = scan.nextInt();
                int Y = scan.nextInt();
                
                if(Y%2==1){
                    System.out.println("No");
                }else{
                    if(X*2<=Y && Y<=X*4){
                         System.out.println("Yes");
                    }else{
                        System.out.println("No");
                    }
                }
        }
}