Imports System.Collections
Imports System.Collections.Generic
Imports System.Data.DataSetExtensions
Imports System.Text.RegularExpressions
Imports System.Xml.Serialization
Imports System.Globalization
Imports System.Diagnostics
Dim list1 = Enumerable.Range(1, 100).[Select](Function(x) Enumerable.Range(1, 10)).ToList()
list1.SelectMany(Function(x) x).Distinct().Dump()