import java.util.*;
 
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());
    
    double s = (double)W * (double)H / 2;
    int a = (W == x*2 && H == y*2) ? 1 : 0;
    System.out.println(s+" "+a);
  }
}
/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