class Program
{
static void Main(string[] args)
{
ArrayList arr = new ArrayList();
for (int i = 100; i > 0; i--)
{
if (i % 6 == 0)
arr.Add(i);
}
for (int i = 0; i < arr.Count; i++)
{
Console.Write(arr[i].ToString()+",");
if ((i + 1) % 5 == 0)
Console.WriteLine("\n");
}
Console.ReadKey(true);
}
}