00:difficulty: easy
01:difficulty: easy
02:difficulty: easy
03:difficulty: easy
04:difficulty: easy
05:difficulty: easy
06:difficulty: easy
07:difficulty: easy
08:difficulty: easy
09:difficulty: easy
0A:difficulty: easy
0B:difficulty: easy
0C:difficulty: intermediate
0D:difficulty: intermediate
0E:difficulty: intermediate
0F:difficulty: intermediate
10:difficulty: intermediate
11:difficulty: intermediate
12:difficulty: intermediate
13:difficulty: intermediate
14:difficulty: intermediate
15:difficulty: intermediate
16:difficulty: intermediate
17:difficulty: intermediate
18:difficulty: intermediate
19:difficulty: intermediate
1A:difficulty: intermediate
1B:difficulty: intermediate
1C:difficulty: intermediate
1D:difficulty: intermediate
1E:difficulty: intermediate
1F:difficulty: intermediate
20:difficulty: intermediate
21:difficulty: intermediate
22:difficulty: intermediate
23:difficulty: intermediate
24:difficulty: intermediate
25:difficulty: medium
26:difficulty: medium
27:difficulty: medium
28:difficulty: medium
29:difficulty: medium
2A:difficulty: medium
2B:difficulty: medium
2C:difficulty: medium
2D:difficulty: medium
2E:difficulty: medium
2F:difficulty: medium
30:difficulty: medium
31:difficulty: hard
32:difficulty: hard