652
0
9
620
2
9
541
0
9
541
0
9
559
1
9
188
0
9
527
2
9
252
0
9
1285
2
8
678
4
8
736
0
8
343
0
8
839
1
8
509
2
8
512
0
8
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Keyword(s): lesson 1