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: intermediate
09:difficulty: intermediate
0A:difficulty: intermediate
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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
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1E:difficulty: medium
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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
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40:difficulty: medium
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49:difficulty: medium
4A:difficulty: medium
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50:difficulty: medium
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56:difficulty: medium
57:difficulty: medium
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59:difficulty: medium
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60:difficulty: medium
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62:difficulty: medium
63:difficulty: medium
64:difficulty: medium
65:difficulty: medium
66:difficulty: hard
67:difficulty: hard
68:difficulty: hard
69:difficulty: hard
6A:difficulty: hard
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70:difficulty: hard
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72:difficulty: hard
73:difficulty: hard
74:difficulty: hard
75:difficulty: hard
76:difficulty: hard
77:difficulty: challenging
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79:difficulty: challenging
7A:difficulty: challenging
7B:difficulty: challenging