import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    double w=sc.nextInt();
    double h=sc.nextInt();
    int x=sc.nextInt();
    int y=sc.nextInt();
    System.out.print( (w*h/2) );
    if(x*2==w&&y*2==h){
        System.out.println(" 1");
    }else{
        System.out.println(" 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