import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long w=sc.nextInt();
        long h=sc.nextInt();
        long x=sc.nextInt();
        long y=sc.nextInt();
        System.out.print(((double)(w*h)/2.0)+" ");
        System.out.println(x*2==w&&y*2==h?1:0);

    }


}
/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