import java.util.*;

public class Main {
	
	public static void main(String[] args)  {
		Scanner scan = new Scanner(System.in);
		double w=Double.parseDouble(scan.next());
		double h=Double.parseDouble(scan.next());
		double x=Double.parseDouble(scan.next());
		double y=Double.parseDouble(scan.next());
		
		System.out.print(w*h/2+" ");
		
		if (x*2==w&&y*2==h) {
			System.out.print(1);
		}else {
			System.out.print(0);
		}
}
}
//end
/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