import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        // Your code here! 
        Scanner sc = new Scanner(System.in);
        int w = sc.nextInt();
        int h = sc.nextInt();
        
        int x = sc.nextInt();
        int y = sc.nextInt();
        
        double ans = 0;
        ans = (double)w * h / 2;
        System.out.print(ans);
        System.out.print(" ");
        if (x * 2 == w && y * 2 == h) {
            System.out.println(1);
        } else {
            System.out.println(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