How do you move the InputBox to the Top Right of the screen?

Sub testme99()

Dim myColA As Range
Dim myColB As Range
Dim myCell As Range
Dim myMaster As Range
Dim mySub As Range
Dim res As Variant

On Error Resume Next
Set myColA = Application.InputBox("select first Range", _ **
Top:= ? Left:= ? **
Default:=Selection.Address, Title:="Select", Type:=8)
On Error GoTo 0

If myColA Is Nothing Then Exit Sub

On Error Resume Next
Set myColB = Application.InputBox("select 2nd range", Type:=8) ** Top:=
? Left:= ? **

On Error GoTo 0

If myColB Is Nothing Then Exit Sub

If myColA.Cells.Count myColB.Cells.Count Then
Set myMaster = myColB
Set mySub = myColA
Else
Set myMaster = myColA
Set mySub = myColB
End If

'loop through smaller range
For Each myCell In myMaster.Cells
res = Application.Match(myCell.Value, mySub, 0)
If IsError(res) Then
'no match
Else
myCell.Interior.ColorIndex = 6
mySub(res).Interior.ColorIndex = 6
End If
Next myCell

End Sub

With Thanks