667
0
18
10451
0
18
1725
2
18
2097
0
18
539
0
18
845
0
18
374
0
18
5904
0
17
8357
1
17
3558
0
17
1501
0
17
683
0
17
999
2
17
1209
0
17
877
2
17
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Keyword(s): lesson1