import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        double W = sc.nextDouble();
        double H = sc.nextDouble();
        double x = sc.nextDouble();
        double y = sc.nextDouble();
        int assess =0;
        if(x*2 ==W&&y*2==H) assess =1;
        System.out.println(W*H/2+" "+assess);
    }
}

/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