Imports System
Imports System.Text.RegularExpressions
Public Class Program
Public Shared Sub Main()
Dim str As String = "EchoCoraKatnissXavierSpock"
Dim arr As String() = Regex.Split(str, "(?<!^)(?=[A-Z])")
Console.WriteLine(String.Join(", ", arr))
End Sub
End Class
' run:
'
' Echo, Cora, Katniss, Xavier, Spock
'