import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int w = sc.nextInt();
        int h = sc.nextInt();
        int x = sc.nextInt();
        int y = sc.nextInt();
        sc.close();

        System.out.print(Double.valueOf(w) * Double.valueOf(h) / 2.0);
        if (w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0) {
            System.out.println(" 1");
        } else {
            System.out.println(" 0");
        }
    }

} import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int w = sc.nextInt();
        int h = sc.nextInt();
        int x = sc.nextInt();
        int y = sc.nextInt();
        sc.close();

        System.out.print(Double.valueOf(w) * Double.valueOf(h) / 2.0);
        if (w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0) {
            System.out.println(" 1");
        } else {
            System.out.println(" 0");
        }
    }

} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int w = sc.nextInt();
        int h = sc.nextInt();
        int x = sc.nextInt();
        int y = sc.nextInt();
        sc.close();

        System.out.print(Double.valueOf(w) * Double.valueOf(h) / 2.0);
        if (w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0) {
            System.out.println(" 1");
        } else {
            System.out.println(" 0");
        }
    } main {
        Scanner sc = new Scanner(System.in);
        int w = sc.nextInt();
        int h = sc.nextInt();
        int x = sc.nextInt();
        int y = sc.nextInt();
        sc.close();

        System.out.print(Double.valueOf(w) * Double.valueOf(h) / 2.0);
        if (w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0) {
            System.out.println(" 1");
        } else {
            System.out.println(" 0");
        }
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int w = sc.nextInt(); w sc.nextInt() sc.nextInt sc int h = sc.nextInt(); h sc.nextInt() sc.nextInt sc 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 System.out.print(Double.valueOf(w) * Double.valueOf(h) / 2.0) System.out.print System.out System System.out Double.valueOf(w) * Double.valueOf(h) / 2.0 Double.valueOf(w) * Double.valueOf(h) Double.valueOf(w) Double.valueOf Double w Double.valueOf(h) Double.valueOf Double h 2.0 if (w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0) {
            System.out.println(" 1");
        } else {
            System.out.println(" 0");
        } w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0 h / 2 == y w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0 w / 2 == x w / 2 w 2 x w % 2 == 0 w % 2 w 2 0 h / 2 == y h / 2 h 2 y h % 2 == 0 h % 2 h 2 0 {
            System.out.println(" 1");
        } System.out.println(" 1") System.out.println System.out System System.out " 1" {
            System.out.println(" 0");
        } System.out.println(" 0") System.out.println System.out System System.out " 0" String[] args args public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int w = sc.nextInt();
        int h = sc.nextInt();
        int x = sc.nextInt();
        int y = sc.nextInt();
        sc.close();

        System.out.print(Double.valueOf(w) * Double.valueOf(h) / 2.0);
        if (w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0) {
            System.out.println(" 1");
        } else {
            System.out.println(" 0");
        }
    }

} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int w = sc.nextInt();
        int h = sc.nextInt();
        int x = sc.nextInt();
        int y = sc.nextInt();
        sc.close();

        System.out.print(Double.valueOf(w) * Double.valueOf(h) / 2.0);
        if (w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0) {
            System.out.println(" 1");
        } else {
            System.out.println(" 0");
        }
    }

} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int w = sc.nextInt();
        int h = sc.nextInt();
        int x = sc.nextInt();
        int y = sc.nextInt();
        sc.close();

        System.out.print(Double.valueOf(w) * Double.valueOf(h) / 2.0);
        if (w / 2 == x && w % 2 == 0 && h / 2 == y && h % 2 == 0) {
            System.out.println(" 1");
        } else {
            System.out.println(" 0");
        }
    }

}
