503
0
23
546
4
23
778
0
23
828
0
23
770
2
23
483
0
23
833
0
23
1192
0
23
796
0
23
812
3
23
525
3
23
688
0
23
782
0
22
949
6
22
1209
11
22
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Keyword(s): lesson6