import java.util.*;
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();

	System.out.printf("%.6f ",W*H/2);

	if(x == W/2 && y == H/2) {
	    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