| easy | 00 |
| easy | 01 |
| easy | 02 |
| easy | 03 |
| easy | 04 |
| easy | 05 |
| intermediate | 06 |
| intermediate | 07 |
| intermediate | 08 |
| intermediate | 09 |
| intermediate | 0A |
| intermediate | 0B |
| intermediate | 0C |
| intermediate | 0D |
| intermediate | 0E |
| intermediate | 0F |
| intermediate | 10 |
| intermediate | 11 |
| intermediate | 12 |
| intermediate | 13 |
| intermediate | 14 |
| intermediate | 15 |
| medium | 16 |
| medium | 17 |
| medium | 18 |
| medium | 19 |
| medium | 1A |