import java.util.*;
public 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 ans = W*H/2.0;
      String met = "0";
      if(W/2.0==x && H/2.0==y){
        met = "1";
      }
      System.out.println(ans+" "+met);
    }
}
/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