import java.util.*;
public class Main {
		
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		long W = sc.nextInt(), H = sc.nextInt(), x =sc.nextInt(), y=sc.nextInt();
		sc.close();
		
		double ans1 = (double)(W*H)/2;
		
		int ans2 = 0;
		if(2*x==W&&2*y==H) ans2 = 1;
		
		System.out.println(ans1+" "+ans2);
	}
	
}
/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