import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long W = sc.nextLong();
        long H = sc.nextLong();
        int X = sc.nextInt();
        int Y = sc.nextInt();
        String split = "0";
        if (W/2.0 == X && H/2.0 == Y) {
            split = "1";
        }
        System.out.println((W*H/2.0) + " " + split);
    }    
}

/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