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 area = w * h / 2.0;
		int mlt = x * 2 == w && y * 2 == h ? 1 : 0;
		System.out.printf("%f %d\n", area, mlt);
		
		sc.close();
	}
}



/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