How to select the entire column starting from row 3 - vba

Hey Guys here is my code it is working but instead of selecting the entire column I want to select all of the column buter after row 3, for example I want to select all of column b but after B3 I hope that makes sense.

any ideas?

Sub HorizontalLoop()
Dim lCol As Long

Sheets("output").Select
For lCol = 1 To 100

Dim inputrange As String
If Not IsEmpty(Cells(lCol).Value) Then
inputrange = Cells(1, lCol).Value

Cells(1, lCol).EntireColumn.Select
Selection.Copy
Sheets("input").Select
ActiveSheet.range(inputrange).Select
ActiveSheet.Paste
Sheets("output").Select
End If
Next lCol
End Sub

Any help will be very much appreciated :) Thanks H