1076
0
21
851
2
20
788
0
20
880
3
20
1470
5
20
379
0
20
1624
0
20
622
1
20
689
0
20
401
0
20
642
0
20
1635
2
20
813
0
20
664
4
20
541
0
20
868
9
20
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Keyword(s): lesson2