Imports System
Public Class Program
Public Shared Sub Main()
Dim str As String = "VB.NET C# C C++ Python NodeJS"
Dim size As Integer = str.Length
For i As Integer = 0 To size - 1
If str(i) >= "a"c AndAlso str(i) <= "z"c Then Console.Write(str(i) & " ")
Next
End Sub
End Class
' run:
'
' y t h o n o d e
'