import java.util.Scanner;

public class Main {

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

	    double W = Double.parseDouble(scanner.next());
	    double H = Double.parseDouble(scanner.next());
	    double x = Double.parseDouble(scanner.next());
	    double y = Double.parseDouble(scanner.next());
	    
	    double m = (double)((W * H) / 2);
	    int n = 0;
	    
	    if ((W== 2*x) && (H == 2*y)) {
	    	n=1;
	    }

        System.out.print(m + " " + n);
	}
}
/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