import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int W = Integer.parseInt(sc.next());
        int H = Integer.parseInt(sc.next());
        int x = Integer.parseInt(sc.next());
        int y = Integer.parseInt(sc.next());

        // 組み合わせ
        int pattern = 0;
        if (2 * x == W && 2 * y == H) {
            pattern++;
        }

        // 面積
        double rect = (double) H * W / 2;

        System.out.println(rect + " " + pattern);
    }
}

/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