00:difficulty: easy
01:difficulty: intermediate
02:difficulty: intermediate
03:difficulty: intermediate
04:difficulty: intermediate
05:difficulty: intermediate
06:difficulty: intermediate
07:difficulty: intermediate
08:difficulty: intermediate
09:difficulty: intermediate
0A:difficulty: intermediate
0B:difficulty: intermediate
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: medium
1F:difficulty: medium
20:difficulty: medium
21:difficulty: medium
22:difficulty: medium
23:difficulty: medium
24:difficulty: medium
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: medium
32:difficulty: medium
33:difficulty: medium
34:difficulty: medium
35:difficulty: medium
36:difficulty: medium
37:difficulty: medium
38:difficulty: medium
39:difficulty: medium
3A:difficulty: medium
3B:difficulty: medium
3C:difficulty: medium
3D:difficulty: medium
3E:difficulty: medium
3F:difficulty: medium
40:difficulty: medium
41:difficulty: medium
42:difficulty: medium
43:difficulty: medium
44:difficulty: medium
45:difficulty: medium
46:difficulty: medium
47:difficulty: medium
48:difficulty: medium
49:difficulty: medium
4A:difficulty: medium
4B:difficulty: medium
4C:difficulty: medium
4D:difficulty: medium
4E:difficulty: medium
4F:difficulty: medium
50:difficulty: medium
51:difficulty: medium
52:difficulty: medium
53:difficulty: medium
54:difficulty: medium
55:difficulty: medium
56:difficulty: medium
57:difficulty: medium
58:difficulty: medium
59:difficulty: medium
5A:difficulty: medium
5B:difficulty: medium
5C:difficulty: medium
5D:difficulty: medium
5E:difficulty: medium
5F:difficulty: medium
60:difficulty: medium
61:difficulty: medium
62:difficulty: medium
63:difficulty: medium
64:difficulty: medium
65:difficulty: medium
66:difficulty: medium
67:difficulty: medium
68:difficulty: medium
69:difficulty: medium
6A:difficulty: medium
6B:difficulty: medium
6C:difficulty: medium
6D:difficulty: medium
6E:difficulty: medium
6F:difficulty: medium
70:difficulty: medium
71:difficulty: hard
72:difficulty: hard
73:difficulty: hard
74:difficulty: hard
75:difficulty: hard
76:difficulty: hard
77:difficulty: hard
78:difficulty: hard
79:difficulty: hard
7A:difficulty: hard
7B:difficulty: hard
7C:difficulty: hard
7D:difficulty: hard
7E:difficulty: hard
7F:difficulty: hard
80:difficulty: hard
81:difficulty: hard
82:difficulty: hard
83:difficulty: hard
84:difficulty: hard
85:difficulty: hard
86:difficulty: hard
87:difficulty: hard
88:difficulty: hard
89:difficulty: hard
8A:difficulty: hard
8B:difficulty: hard
8C:difficulty: hard
8D:difficulty: hard
8E:difficulty: hard
8F:difficulty: hard
90:difficulty: hard
91:difficulty: hard
92:difficulty: hard
93:difficulty: hard
94:difficulty: hard
95:difficulty: hard
96:difficulty: hard
97:difficulty: hard
98:difficulty: hard
99:difficulty: hard
9A:difficulty: hard
9B:difficulty: hard
9C:difficulty: hard
9D:difficulty: hard
9E:difficulty: hard
9F:difficulty: challenging
A0:difficulty: challenging