import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long W = sc.nextLong();
		long H = sc.nextLong();
		long x = sc.nextLong();
		long y = sc.nextLong();
		
		double a = W / 2;
		double b = H / 2;
		double X = 2.0 * a - x;
		double Y = 2.0 * b - y;
		
		int num = 0;
		if(2 * x == W && 2 * y == H) {
			num = 1;
		}
		
		double S = W * H / 2.0;
		
		System.out.println(S + " " + num);
	}
}

/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