Playing with a Full Deck

Probably a little off topic, but the stipulation that 52 cells needed to be pre-selected prompted this suggestion.The macro selects down any number of cells as input via MsgBox prior to running this type of sub that requires a range to be pre-selected.

Could easily be modified to include other criteria.

Sub SelectCellsDownFromSelection()
    Dim n As Variant
    Dim startRange As Range
    Dim resultRange As Range
    Dim cell As Range
    Dim hasData As Boolean
    Dim c As Range
    Dim response As VbMsgBoxResult

    ' Ensure something is selected
    If TypeName(Selection) <> "Range" Then
        MsgBox "Please select one or more cells first.", vbExclamation
        Exit Sub
    End If

    Set startRange = Selection
    ' Ensure selection is on a single row - REM out if not required
    If startRange.Rows.Count > 1 Then
        MsgBox "Please select cells on a single row only.", vbExclamation
        Exit Sub
    End If

    ' Ask for number of cells down
    n = Application.InputBox( _
            Prompt:="Enter the number of cells to select downward:", _
            Title:="Select Cells Down", _
            Type:=1)

    ' Handle Cancel or invalid input
    If n = False Or n < 1 Or n <> CLng(n) Then
        MsgBox "Please enter a valid whole number greater than zero.", vbExclamation
        Exit Sub
    End If

    ' Build the resulting range
    For Each cell In startRange.Cells
        If resultRange Is Nothing Then
            Set resultRange = cell.Resize(n, 1)
        Else
            Set resultRange = Union(resultRange, cell.Resize(n, 1))
        End If
    Next cell

    ' Check for existing data
    hasData = False
    For Each c In resultRange.Cells
        If Not IsEmpty(c.Value) Then
            hasData = True
            Exit For
        End If
    Next c

    ' Prompt user if data exists - REM out if overwrite is OK
    If hasData Then
        response = MsgBox( _
            "Some cells in the target range already contain data." & vbCrLf & _
            "Do you want to overwrite them?", _
            vbYesNo + vbExclamation, _
            "Confirm Overwrite")

        If response = vbNo Then Exit Sub
    End If
    ' Select the final range
    resultRange.Select
End Sub