    import java.util.Scanner;
     
    public class Main{
    	public static void main(String[] args){
        	Scanner sc = new Scanner(System.in);
          	int w = sc.nextInt();
          	int h = sc.nextInt();
          	int x = sc.nextInt();
          	int y = sc.nextInt();
          
          	System.out.println((double)w*h/2.0 + " " + 
                               ((w==2*x && h==2*y) ? 1: 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