806
0
20
594
0
20
540
0
20
642
2
20
1035
1
20
902
0
20
1027
0
19
356
0
19
546
0
19
426
0
19
415
4
19
969
2
19
280
0
19
580
2
19
341
0
19
537
3
19
379
6
19
709
0
19
656
2
19
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Keyword(s): lesson6