import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {

	public static void main(String[] args) throws Exception {
		// TODO 自動生成されたメソッド・スタブ
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		String W = in.readLine();
		long w =  Long.parseLong(W.split(" ")[0]);
		long h =  Long.parseLong(W.split(" ")[1]);
		long x =  Long.parseLong(W.split(" ")[2]);
		long y =  Long.parseLong(W.split(" ")[3]);

		double sq = w*h/2.0;
		System.out.print(sq+" ");

		if(w/2.0==x && h/2.0 == y){
			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