import java.io.FileNotFoundException;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws FileNotFoundException {

		//    	File file = new File("src/in.txt");
		//    	Scanner sc = new Scanner(file);

		Scanner sc = new Scanner(System.in);

		int W = sc.nextInt();
		int H = sc.nextInt();
		int x = sc.nextInt();
		int y = sc.nextInt();

		boolean flg = false;

		BigDecimal S = BigDecimal.valueOf(W);
		S = S.multiply(BigDecimal.valueOf(H));
		S = S.divide(BigDecimal.valueOf(2), 10,RoundingMode.HALF_UP);
		if(2*x==W&&2*y==H) {
			flg = true;
		}
		System.out.print(S+" ");
		if(flg) {
			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