> From [this SO post](https://stackoverflow.com/q/49364446/1188513):
```vb
For i = 2 To LR
0
If Cells(i, 1) <> x Then
Cells(ALR, 3) = x
ALR = ActiveSheet.Range("C" & Rows.Count).End(xlUp).Row + 1
x = x + 1
Else
x = x + 1
End If
If Cells(i, 1) > x Then GoTo 0
If Cells(i, 1) = x Then
x = x + 1
End If
Next i
```
That stray `0` is a fully legal line number, and it's dangerous. A beginner that makes it a habit of