using System;

public class Program

{

    public static void Main()

    {

            int x,num;

            x=1;

            string linea;

            Console.WriteLine("Ingrese un numero");

            linea=Console.ReadLine();

            num=int.Parse(linea);

do

        {

            Console.Write(x);

            Console.Write("-");

            x=x+1;

        }   while(x<=num);

    }

}