import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long W = sc.nextLong();
        long H = sc.nextLong();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        String split = "0";
        if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        }
        System.out.println((W*H/2.0) + " " + split);
    }    
} import java.util.*; util.* java public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long W = sc.nextLong();
        long H = sc.nextLong();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        String split = "0";
        if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        }
        System.out.println((W*H/2.0) + " " + split);
    }    
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long W = sc.nextLong();
        long H = sc.nextLong();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        String split = "0";
        if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        }
        System.out.println((W*H/2.0) + " " + split);
    } main {
        Scanner sc = new Scanner(System.in);
        long W = sc.nextLong();
        long H = sc.nextLong();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        String split = "0";
        if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        }
        System.out.println((W*H/2.0) + " " + split);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) long W = sc.nextLong(); W sc.nextLong() sc.nextLong sc long H = sc.nextLong(); H sc.nextLong() sc.nextLong sc int X = sc.nextInt(); X sc.nextInt() sc.nextInt sc int Y = sc.nextInt(); Y sc.nextInt() sc.nextInt sc String split = "0"; split "0" if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        } W/2.0 == X && H/2.0 == Y W/2.0 == X W/2.0 W 2.0 X H/2.0 == Y H/2.0 H 2.0 Y {
            split = "1";
        } split = "1" split "1" System.out.println((W*H/2.0) + " " + split) System.out.println System.out System System.out (W*H/2.0) + " " + split (W*H/2.0) + " " + split (W*H/2.0) W*H W H 2.0 " " split String[] args args public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long W = sc.nextLong();
        long H = sc.nextLong();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        String split = "0";
        if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        }
        System.out.println((W*H/2.0) + " " + split);
    }    
} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long W = sc.nextLong();
        long H = sc.nextLong();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        String split = "0";
        if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        }
        System.out.println((W*H/2.0) + " " + split);
    }    
} Main
import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long W = sc.nextLong();
        long H = sc.nextLong();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        String split = "0";
        if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        }
        System.out.println((W*H/2.0) + " " + split);
    }    
}
