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

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

        Scanner scanner = new Scanner(System.in);
        BigDecimal  W = new BigDecimal(scanner.next());
        BigDecimal H = new BigDecimal(scanner.next());
        BigDecimal x = new BigDecimal(scanner.next());
        BigDecimal y = new BigDecimal(scanner.next());

        BigDecimal menseki = W.multiply(H).divide(BigDecimal.valueOf(2), 9, RoundingMode.HALF_UP);
        BigDecimal halfW = W.divide(BigDecimal.valueOf(2), 9, RoundingMode.HALF_UP);
        BigDecimal halfH = H.divide(BigDecimal.valueOf(2), 9, RoundingMode.HALF_UP);

        int divType = 0;
        if (halfW.compareTo(x) == 0
                && halfH.compareTo(y) == 0) {
            divType = 1;
        }
        System.out.printf("%f %d\n", menseki.doubleValue(), divType);
    }
}
/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