import java.util.*;

public class Main
{
    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        //final int n = sc.nextInt();
        final double w = sc.nextDouble();
        final double h = sc.nextDouble();
        final double x = sc.nextDouble();
        final double y = sc.nextDouble();

        final double ansArea = (w*h)/2;
        int ansPattern = 0;
        if (x*2 == w && y*2 == h) ansPattern = 1;
        System.out.println(ansArea+" "+ansPattern);

        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