static void Main(string[] args)
{
string[] input = Console.ReadLine().Split();
ListyIterator <string> list = new ListyIterator <string>(input.Skip(1).ToArray());
string command = string.Empty;
while ((command = Console.ReadLine()) != "END")
{
if (command == "Move")
{
Console.WriteLine(list.Move());
}
else if (command == "Print")
{
try
{
list.Print();
}
catch (InvalidOperationException e)
{
Console.WriteLine(e.Message);
}
}
else if (command == "HasNext")
{
Console.WriteLine(list.HashNext());
}
}
}
