import java.util.Scanner;

class Main {
    public static void main(final String[] args) {
        Scanner scan = new Scanner(System.in);
        int W = scan.nextInt();
        int H = scan.nextInt();
        int x = scan.nextInt();
        int y = scan.nextInt();

        double area =(double)W * H/2;

        int flag =  0;
        if (x*2==W && y*2==H) {
            flag = 1;
        }

        System.out.println(area + " " + flag);

    }
}

/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