500
9
12
720
0
12
651
4
12
621
0
12
217
0
12
498
0
12
631
0
12
264
0
12
304
0
12
407
7
12
522
0
12
226
1
12
261
0
12
823
1
11
2009
2
11
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Keyword(s): lesson 1