import java.math.BigDecimal;
import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String[] strs = sc.nextLine().split(" ");
        int w = Integer.parseInt(strs[0]);
        int h = Integer.parseInt(strs[1]);
        int x = Integer.parseInt(strs[2]);
        int y = Integer.parseInt(strs[3]);
        BigDecimal area = new BigDecimal(w).multiply(new BigDecimal(h)).divide(new BigDecimal(2)).setScale(10);
        int num = ((x*2==w)&&(y*2==h))?1:0;
        System.out.println(area+" "+num);
    }
}
/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