import java.util.Scanner;

class Main {
    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        double W = sc.nextDouble();
        double H = sc.nextDouble();
        double x = sc.nextDouble();
        double y = sc.nextDouble();

        double area = W*H/2;
        int isMulti = 0;
        if (x == W/2 && y == H/2) {
            isMulti = 1;
        }

        System.out.println(String.format("%.6f", area) + " " + isMulti);
    }

}
/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