import java.util.*;
import java.util.stream.*;

public class Main {
  public static void main(String[] args) throws Exception {
    Scanner in = new Scanner(System.in);
    long W = in.nextLong();
    long H = in.nextLong();
    long x = in.nextLong();
    long y = in.nextLong();
    System.out.println((W * H / 2.0) + " " + (W == x * 2 && H == y * 2 ? 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