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