806
0
20
864
9
20
398
0
20
688
0
20
594
0
20
1147
0
20
812
0
20
526
0
20
903
3
20
832
0
20
642
2
20
425
2
19
494
0
19
459
3
19
704
0
19
644
2
19
720
0
19
964
0
19
711
0
19
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Keyword(s): lesson4