Imports System

 Module Module1

    Public Class A

        public Sub mul(Byval a As integer,byval b as integer)

        Console.writeLine("Mul of num {0}",a*b)

        End sub

        Sub mul(Byval a as integer,byval b as integer,byval c as integer)

        Console.writeLine("Mul of Num{0}",a*b*c)

        End sub

    End class

 Public Sub Main()

        Dim s as A=New A()

        s.mul(2,3)

        s.mul(2,3,4)

        Console.ReadLine()

    End Sub

End Module