import java.util.*;

public class numbers {
    public static void main(String args[]) {
    ArrayList<Integer> ints = new ArrayList<Integer>();
    Scanner scan = new Scanner(System.in);
    System.out.println("Enter positive integer! (Enter -1 to stop!)");

    int counter = 0;
    double sum = 0;
    double median = 0;

    while (true) {
        int input1 = scan.nextInt();
        if (input1 == -1) {
            break;
        } else if (input1 > 0) {
            ints.add(input1);
            sum += input1;
            counter++;
        } else {
            System.out.println("Not Positive!");
        }
    }
    Collections.sort(ints);

    
    if (counter == 0) {
        System.out.println("No integers entered!");
        return;
    } else if (counter % 2 == 0 && counter != 0) {
        median = (ints.get(counter / 2 - 1) + ints.get(counter / 2)) / 2.0;
    } else {
        median = ints.get(counter/2);
    }
    System.out.println("Max: "+(ints.get(counter-1)));
    System.out.println("Min: "+(ints.get(0)));
    System.out.println("Median: "+median);
    System.out.println("Average: "+(sum/counter));
    System.out.println("Numbers: "+ints);
    }   
}