import java.util.*;

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

        double area = w / 2 * h;
        System.out.print(area + " ");

        int n = (w / 2 == x && h / 2 == y) ? 1 : 0;
        System.out.print(n);
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz