import java.text.DecimalFormat;
import java.util.*;
public class Tests {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        DecimalFormat df = new DecimalFormat("0.####");
        double[] array = new double[5];
        double maxNum = -201;
        for (int i = 0; i < 5; i++) {
            array[i] = Double.parseDouble(input.nextLine());
        }
        for (int i = 0; i < 5; i++) {
            if (array[i] <= 200 && array[i] >= -200) {
                for (i = 0; i < 5; i++) {

                    if (array[i] > maxNum) {
                        maxNum = array[i];
                    }
                }

                    System.out.println(df.format(maxNum));

            }
        }
    }
}