841
2
21
879
2
21
626
1
21
929
5
21
1044
0
21
835
6
21
704
2
21
768
0
21
1081
0
21
477
1
21
757
0
21
885
0
21
879
0
21
393
7
21
644
2
21
506
0
21
627
2
21
665
0
21
834
0
21
674
0
21
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Keyword(s): lesson4~