410
2
20
787
3
20
784
0
20
733
13
20
367
0
20
430
7
20
388
0
19
534
0
19
879
4
19
1106
2
19
380
2
19
166
0
19
400
6
19
513
5
19
388
0
18
416
4
18
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Keyword(s): lesson 8