import java.util.Scanner;

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();

	int te=0;
	double ans=w*h/2;
	if(w/2==x&&h/2==y){
		te=1;
	}
System.out.print(ans);
System.out.println(" "+te);
	}}
/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