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();
        sc.close();

        int b = Y / 2 - X;
        int a = X - b;
        if (a < 0 || b < 0) {
            System.out.println("No");
        } else {
            if (2 * a + 4 * b == Y) {
                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();
        sc.close();

        int b = Y / 2 - X;
        int a = X - b;
        if (a < 0 || b < 0) {
            System.out.println("No");
        } else {
            if (2 * a + 4 * b == Y) {
                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();
        sc.close();

        int b = Y / 2 - X;
        int a = X - b;
        if (a < 0 || b < 0) {
            System.out.println("No");
        } else {
            if (2 * a + 4 * b == Y) {
                System.out.println("Yes");
            } else {
                System.out.println("No");
            }
        }

    } main {
        Scanner sc = new Scanner(System.in);
        int X = sc.nextInt();
        int Y = sc.nextInt();
        sc.close();

        int b = Y / 2 - X;
        int a = X - b;
        if (a < 0 || b < 0) {
            System.out.println("No");
        } else {
            if (2 * a + 4 * b == Y) {
                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 sc.close() sc.close sc int b = Y / 2 - X; b Y / 2 - X Y / 2 Y 2 X int a = X - b; a X - b X b if (a < 0 || b < 0) {
            System.out.println("No");
        } else {
            if (2 * a + 4 * b == Y) {
                System.out.println("Yes");
            } else {
                System.out.println("No");
            }
        } a < 0 || b < 0 a < 0 a 0 b < 0 b 0 {
            System.out.println("No");
        } System.out.println("No") System.out.println System.out System System.out "No" {
            if (2 * a + 4 * b == Y) {
                System.out.println("Yes");
            } else {
                System.out.println("No");
            }
        } if (2 * a + 4 * b == Y) {
                System.out.println("Yes");
            } else {
                System.out.println("No");
            } 2 * a + 4 * b == Y 2 * a + 4 * b 2 * a 2 a 4 * b 4 b Y {
                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();
        sc.close();

        int b = Y / 2 - X;
        int a = X - b;
        if (a < 0 || b < 0) {
            System.out.println("No");
        } else {
            if (2 * a + 4 * b == Y) {
                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();
        sc.close();

        int b = Y / 2 - X;
        int a = X - b;
        if (a < 0 || b < 0) {
            System.out.println("No");
        } else {
            if (2 * a + 4 * b == Y) {
                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();
        sc.close();

        int b = Y / 2 - X;
        int a = X - b;
        if (a < 0 || b < 0) {
            System.out.println("No");
        } else {
            if (2 * a + 4 * b == Y) {
                System.out.println("Yes");
            } else {
                System.out.println("No");
            }
        }

    }
}