import java.util.*;

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

        int W = scanner.nextInt();
        int H = scanner.nextInt();

        int x = scanner.nextInt();
        int y = scanner.nextInt();


        double area = (double)W*H/ 2.0;

        if(2*x==W && 2*y==H){
            System.out.println(area + " " + "1");
        }else{
            System.out.println(area + " " + "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