Complete the indicated task to unlock the corresponding license.
| License | How to unlock
|
|---|
| A-Class License | Complete a majority of at least one chapter on Hard.
|
| B-Class License | Complete a majority of at least one chapter on Medium.
|
| C-Class License | Complete a majority of at least one chapter on Easy.
|
| S-Class License | Complete a majority of at least one chapter on Expert.
|
