758
2
21
733
13
20
419
0
20
461
0
20
596
2
20
784
0
20
640
1
20
283
0
19
272
2
19
680
0
19
523
2
19
550
0
19
350
0
19
388
0
19
1106
2
19
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Keyword(s): lesson3