import java.util.*;


class Main{
    public static void main(String argv[]) {
        Scanner sc = new Scanner(System.in);
        double W = sc.nextInt();
        double H = sc.nextInt();
        double x = sc.nextInt();
        double y = sc.nextInt();
        int split = 0;

        if(W/2D == x && H/2D == y)split=1;

        System.out.println(W*H/2D + " " + split);
    }
} import java.util.*; util.* java class Main{
    public static void main(String argv[]) {
        Scanner sc = new Scanner(System.in);
        double W = sc.nextInt();
        double H = sc.nextInt();
        double x = sc.nextInt();
        double y = sc.nextInt();
        int split = 0;

        if(W/2D == x && H/2D == y)split=1;

        System.out.println(W*H/2D + " " + split);
    }
} Main public static void main(String argv[]) {
        Scanner sc = new Scanner(System.in);
        double W = sc.nextInt();
        double H = sc.nextInt();
        double x = sc.nextInt();
        double y = sc.nextInt();
        int split = 0;

        if(W/2D == x && H/2D == y)split=1;

        System.out.println(W*H/2D + " " + split);
    } main {
        Scanner sc = new Scanner(System.in);
        double W = sc.nextInt();
        double H = sc.nextInt();
        double x = sc.nextInt();
        double y = sc.nextInt();
        int split = 0;

        if(W/2D == x && H/2D == y)split=1;

        System.out.println(W*H/2D + " " + split);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) double W = sc.nextInt(); W sc.nextInt() sc.nextInt sc double H = sc.nextInt(); H sc.nextInt() sc.nextInt sc double x = sc.nextInt(); x sc.nextInt() sc.nextInt sc double y = sc.nextInt(); y sc.nextInt() sc.nextInt sc int split = 0; split 0 if(W/2D == x && H/2D == y)split=1; W/2D == x && H/2D == y W/2D == x W/2D W 2D x H/2D == y H/2D H 2D y split=1 split 1 System.out.println(W*H/2D + " " + split) System.out.println System.out System System.out W*H/2D + " " + split W*H/2D + " " + split W*H/2D W*H W H 2D " " split String argv[] argv
import java.util.*;


class Main{
    public static void main(String argv[]) {
        Scanner sc = new Scanner(System.in);
        double W = sc.nextInt();
        double H = sc.nextInt();
        double x = sc.nextInt();
        double y = sc.nextInt();
        int split = 0;

        if(W/2D == x && H/2D == y)split=1;

        System.out.println(W*H/2D + " " + split);
    }
}