using System;

public class Program

{

    public static void main()

    {

        int[] numeros= {7,3,5,8,1};

        Console.WriteLine(JoinArray("-",numeros));

         Array.Sort(numeros); 

        foreach(int value in numeros) 

        { 

            Console.Write(value + " "); 

        } 

    }

    static string JoinArray(string separator,int[]numbers)

    {

        string resposta="";

        for(int i =0; i< numbers.Length;i++)

        {resposta = resposta+numbers[i]+separator;}

    return resposta;

    }

}