import java.util.Scanner;

class Main {
    public static void main(String[] args) {
	Scanner sc = new Scanner(System.in);

	int W, H, x, y;
	W = sc.nextInt();
	H = sc.nextInt();
	x = sc.nextInt();
	y = sc.nextInt();

	int judge;
	if (x + x == W && y + y == H)
	    judge = 1;
	else
	    judge = 0;

	System.out.println((double)(((double)W * (double)H) / 2) + " " + judge);
    }
}
/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