Volume Covered must be a positive integer.
Manufacturer's name must be at least 4 symbols long.
Model's name must be at least 2 symbols long.
Invalid command
Air Conditioner model P20 from Audi registered successfully.
Volume Covered must be a positive integer.
Air Conditioner model  W 0 W from Audi registered successfully.
Invalid command
An entry for the given model already exists.
The specified entry does not exist.
Air Conditioner model  W 0 W from Audi tested successfully.
