import java.util.*;
 
public class Main {
	public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
        long w = sc.nextLong();
        long h = sc.nextLong();
        long x = sc.nextLong();
        long y = sc.nextLong();
        double ans = w * h / 2.0;
        System.out.print(ans + " ");
        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