import java.util.Scanner;

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 > x * 4 || y < x * 2) {
      System.out.println("No");
      return;
    }

    if (y % 2 == 0) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
} import java.util.Scanner; Scanner 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 > x * 4 || y < x * 2) {
      System.out.println("No");
      return;
    }

    if (y % 2 == 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 > x * 4 || y < x * 2) {
      System.out.println("No");
      return;
    }

    if (y % 2 == 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 > x * 4 || y < x * 2) {
      System.out.println("No");
      return;
    }

    if (y % 2 == 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 > x * 4 || y < x * 2) {
      System.out.println("No");
      return;
    } y > x * 4 || y < x * 2 y > x * 4 y x * 4 x 4 y < x * 2 y x * 2 x 2 {
      System.out.println("No");
      return;
    } System.out.println("No") System.out.println System.out System System.out "No" return; if (y % 2 == 0) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    } y % 2 == 0 y % 2 y 2 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 > x * 4 || y < x * 2) {
      System.out.println("No");
      return;
    }

    if (y % 2 == 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 > x * 4 || y < x * 2) {
      System.out.println("No");
      return;
    }

    if (y % 2 == 0) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
} Main
import java.util.Scanner;

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 > x * 4 || y < x * 2) {
      System.out.println("No");
      return;
    }

    if (y % 2 == 0) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
}
