import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        
        Scanner sc = new Scanner(System.in);
        int W = sc.nextInt();
        int H = sc.nextInt();
        int x = sc.nextInt();
        int y = sc.nextInt();
        
        System.out.print( (double) W * H / 2.0 + " " );
        
        boolean isOK = (double)x == (double) W / 2.0 && (double)y == (double) H / 2.0;
        System.out.println( isOK ? 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