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();

        double ans = (double)w * (double)h / (double)2;
        if (x * 2 == w && y * 2 == h) {
            System.out.println(ans + " 1");
        } else if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 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();

        double ans = (double)w * (double)h / (double)2;
        if (x * 2 == w && y * 2 == h) {
            System.out.println(ans + " 1");
        } else if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 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();

        double ans = (double)w * (double)h / (double)2;
        if (x * 2 == w && y * 2 == h) {
            System.out.println(ans + " 1");
        } else if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 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();

        double ans = (double)w * (double)h / (double)2;
        if (x * 2 == w && y * 2 == h) {
            System.out.println(ans + " 1");
        } else if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 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 double ans = (double)w * (double)h / (double)2; ans (double)w * (double)h / (double)2 (double)w * (double)h (double)w (double)h (double)2 if (x * 2 == w && y * 2 == h) {
            System.out.println(ans + " 1");
        } else if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 0");
        } x * 2 == w && y * 2 == h x * 2 == w x * 2 x 2 w y * 2 == h y * 2 y 2 h {
            System.out.println(ans + " 1");
        } System.out.println(ans + " 1") System.out.println System.out System System.out ans + " 1" ans " 1" if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 0");
        } (x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h) (x * 2 == w && y * 2 != h) x * 2 == w x * 2 x 2 w y * 2 != h y * 2 y 2 h (x * 2 != w && y * 2 == h) x * 2 != w x * 2 x 2 w y * 2 == h y * 2 y 2 h {
            System.out.println(ans + " 0");
        } System.out.println(ans + " 0") System.out.println System.out System System.out ans + " 0" ans " 0" {
            System.out.println(ans + " 0");
        } System.out.println(ans + " 0") System.out.println System.out System System.out ans + " 0" ans " 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();

        double ans = (double)w * (double)h / (double)2;
        if (x * 2 == w && y * 2 == h) {
            System.out.println(ans + " 1");
        } else if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 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();

        double ans = (double)w * (double)h / (double)2;
        if (x * 2 == w && y * 2 == h) {
            System.out.println(ans + " 1");
        } else if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 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();

        double ans = (double)w * (double)h / (double)2;
        if (x * 2 == w && y * 2 == h) {
            System.out.println(ans + " 1");
        } else if ((x * 2 == w && y * 2 != h) || (x * 2 != w && y * 2 == h)) {
            System.out.println(ans + " 0");
        } else {
            System.out.println(ans + " 0");
        }
    }
}
