Excel VBA: Add specific value at the beginning or at the end of a column

Hello experts,

I have the following procedures which allows me to add specific strings in first & last position of a column values.

Sub Add_Specific_Char_First_Position()
Dim rng As Range
Dim strSpecificChar As String
Dim strCol As String
Dim lngLastRow As Long
Dim lngRow As Long

    strCol = InputBox("Please enter the column letter in which you add specific string:", "Choose Column Letter")

    lngLastRow = Range(strCol & Rows.Count).End(xlUp).Row

    Set rng = Application.InputBox("Please select the cell in which you want to add the specific character:", "Select cell", Type:=8)

    If Not rng Is Nothing Then
    
        strSpecificChar = rng
        
        For lngRow = 1 To lngLastRow
            Cells(lngRow, strCol).Value =  strSpecificChar & Cells(lngRow, strCol).Value
        Next

    End If
    
End Sub

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Sub Add_Specific_Char_Last_Position()
Dim rng As Range
Dim strSpecificChar As String
Dim strCol As String
Dim lngLastRow As Long
Dim lngRow As Long

    strCol = InputBox("Please enter the column letter in which you add specific string:", "Choose Column Letter")

    lngLastRow = Range(strCol & Rows.Count).End(xlUp).Row

    Set rng = Application.InputBox("Please select the cell in which you want to add the specific character:", "Select cell", Type:=8)

    If Not rng Is Nothing Then
    
        strSpecificChar = rng
        
        For lngRow = 1 To lngLastRow
            Cells(lngRow, strCol).Value = Cells(lngRow, strCol).Value & strSpecificChar
        Next

    End If
    
End Sub

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I would like to merge those procedures in one procedure by adding input boxs and if conditions.
1-Inputbox ("Please report column letter in which you want to apply procedure")
2-Inputbox (“Please report value related to the action that you want to perform: 1 for adding string at the beginning else at the end”)
3-Inputbox(“Please select the cell in which is reported value that you want to add”)
Thank you in advance for your help.