Imports System      

Public Module Module1

    Public Sub Main()

        Dim intNumber1, intNumber2

        intNumber1 = "12"

        intNumber2 = "34"

        Console.WriteLine("intNumber1 + intNumber2")

            intNumber1 = 12

            intNumber2 = 34

            Console.WriteLine(intNumber1 + intNumber2)

    End Sub

End Module