import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scn = new Scanner(System.in);
		long W = scn.nextLong(), H = scn.nextLong();
		long x = scn.nextLong(), y = scn.nextLong();
		double ans = (double)(W*H)/2;
		System.out.println(ans + " " + ((2*x==W && 2*y == H)?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