import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        final Scanner scanner = new Scanner(System.in);

        final int w = scanner.nextInt();
        final int h = scanner.nextInt();
        final int x = scanner.nextInt();
        final int y = scanner.nextInt();

        final double max = w / 2.0 * h;
        final int multi = x == w / 2.0 && y == h / 2.0 ? 1 : 0;

        System.out.println(max + " " + multi);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        final Scanner scanner = new Scanner(System.in);

        final int w = scanner.nextInt();
        final int h = scanner.nextInt();
        final int x = scanner.nextInt();
        final int y = scanner.nextInt();

        final double max = w / 2.0 * h;
        final int multi = x == w / 2.0 && y == h / 2.0 ? 1 : 0;

        System.out.println(max + " " + multi);
    }
} Main public static void main(String[] args) {
        final Scanner scanner = new Scanner(System.in);

        final int w = scanner.nextInt();
        final int h = scanner.nextInt();
        final int x = scanner.nextInt();
        final int y = scanner.nextInt();

        final double max = w / 2.0 * h;
        final int multi = x == w / 2.0 && y == h / 2.0 ? 1 : 0;

        System.out.println(max + " " + multi);
    } main {
        final Scanner scanner = new Scanner(System.in);

        final int w = scanner.nextInt();
        final int h = scanner.nextInt();
        final int x = scanner.nextInt();
        final int y = scanner.nextInt();

        final double max = w / 2.0 * h;
        final int multi = x == w / 2.0 && y == h / 2.0 ? 1 : 0;

        System.out.println(max + " " + multi);
    } final Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) final int w = scanner.nextInt(); w scanner.nextInt() scanner.nextInt scanner final int h = scanner.nextInt(); h scanner.nextInt() scanner.nextInt scanner final int x = scanner.nextInt(); x scanner.nextInt() scanner.nextInt scanner final int y = scanner.nextInt(); y scanner.nextInt() scanner.nextInt scanner final double max = w / 2.0 * h; max w / 2.0 * h w / 2.0 w 2.0 h final int multi = x == w / 2.0 && y == h / 2.0 ? 1 : 0; multi x == w / 2.0 && y == h / 2.0 ? 1 : 0 x == w / 2.0 && y == h / 2.0 x == w / 2.0 x w / 2.0 w 2.0 y == h / 2.0 y h / 2.0 h 2.0 1 0 System.out.println(max + " " + multi) System.out.println System.out System System.out max + " " + multi max + " " + multi max " " multi String[] args args public class Main {
    public static void main(String[] args) {
        final Scanner scanner = new Scanner(System.in);

        final int w = scanner.nextInt();
        final int h = scanner.nextInt();
        final int x = scanner.nextInt();
        final int y = scanner.nextInt();

        final double max = w / 2.0 * h;
        final int multi = x == w / 2.0 && y == h / 2.0 ? 1 : 0;

        System.out.println(max + " " + multi);
    }
} public class Main {
    public static void main(String[] args) {
        final Scanner scanner = new Scanner(System.in);

        final int w = scanner.nextInt();
        final int h = scanner.nextInt();
        final int x = scanner.nextInt();
        final int y = scanner.nextInt();

        final double max = w / 2.0 * h;
        final int multi = x == w / 2.0 && y == h / 2.0 ? 1 : 0;

        System.out.println(max + " " + multi);
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        final Scanner scanner = new Scanner(System.in);

        final int w = scanner.nextInt();
        final int h = scanner.nextInt();
        final int x = scanner.nextInt();
        final int y = scanner.nextInt();

        final double max = w / 2.0 * h;
        final int multi = x == w / 2.0 && y == h / 2.0 ? 1 : 0;

        System.out.println(max + " " + multi);
    }
}