278
4
21
590
2
21
392
0
21
541
0
21
680
0
20
347
2
20
255
0
20
384
0
20
431
0
20
523
0
20
740
0
20
543
2
20
656
13
20
603
1
20
301
0
19
663
1
19
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Keyword(s): lesson4