import java.util.*;

class Main{
    final static long mod = 1000000007;
    //
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        double w = sc.nextDouble(), h = sc.nextDouble(), x = sc.nextDouble(), y = sc.nextDouble();
        System.out.print(w * h / 2);
        if(w / 2 == x && h / 2 == y) System.out.println(" " + 1);
        else System.out.print(" " + 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