i am looking for a way to convert the Arabic numerical string "??????????" to an English numerical string "0123456789"

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       dim Anum as string ="??????????"
       dim Enum as string =get_egnlishNum(Anum)
End Sub

private function get_egnlishNum(byval _Anum as string) as string

''   converting code

end function