static void Main(string[] args)
{
// get a slice of a List
var utilList = new UList <int> {
1, 2, 3, 5, 43, 42, 6, 88, 886, 864
};
Console.WriteLine("Original Util List: ");
Console.WriteLine(utilList);
// call the get next.
Console.WriteLine(utilList.GetNext());
Console.WriteLine(utilList.GetNext());
utilList.GetNext();
Console.WriteLine(utilList.GetNext());
// make sure that the foreach still works
Console.WriteLine(utilList);
Console.WriteLine("Program Success.");
}