using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace primek
{
  class Program
  {
    static void Main(string[] args)
    {
      string a;
      int b, i=1, c=0;
      int d=1;
      int elemszam = 10;
      int[] tomb = new int[elemszam];
      Console.Write("Szám: ");
      a = Console.ReadLine();
      b = Convert.ToInt32(a);
      do
      {
        if(i % b == 0)
        {
          tomb[c] = i;
          c++;
        }
        i++;
      }while(c < elemszam);
      for (int k = 0; k < 2; k++)
      {
        for (int j = 0; j < elemszam; j++)
        {
          if (tomb[j] % 10 == 0)
          {
            Console.Write("{0}: {1}", d * tomb[j], j+1);
            if(j + 1 != elemszam)
            {
              Console.Write(", ");
            }
            else
            {
              Console.WriteLine();
            }
          }
        }
        d += 2;
      }
      int hossz;
      hossz = tomb.Length;
      Console.WriteLine("A tömb hossza: {0}", hossz);
      Console.ReadKey();
    }
  }
}