import java.util.*;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    long w = sc.nextLong();
    long h = sc.nextLong();
    long x = sc.nextLong();
    long y = sc.nextLong();
    
    double area = (w*h)/2.0;
    int ju = 0;
    
    if(w == 2*x && h == 2*y) ju = 1;

    System.out.println(area + " " + ju);
    
  }
}
/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