I'm having problems locking a specific set of cells in my
spreadsheet. The issue is mainly that I will specify what cells I
want locked and what users are allowed to change, but Excel leaves
some extra cells unlocked for no reason that I can discern. What am I
doing wrong?

The specifics:
- I tell Excel that I want only the following cells unlocked for
editing: D13:G19, I13:J19, D27:G33, I27:J33, F52
- Excel does what I tell it to do but also leaves the following cells
unlocked: B22:K22, B37:K37

Is there any possible reason for this odd behaviour?