import java.util.*;
 
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();
        
        double ans = (double)W*(double)H/2.0;
        
        if(W==x*2 && H==y*2){
            System.out.println(ans+" "+1);
        }else{
            System.out.println(ans+" "+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