Function SumListRecursive(numbers As List(Of Integer)) As Integer
        ' Base case: if the list is empty, return 0
        If numbers.Count = 0 Then
            Return 0
        Else
            ' Recursive case: add the first element to the sum of the rest of the list
            Return numbers(0) + SumListRecursive(numbers.Skip(1))
        End If
    End Function