387
0
4
660
0
4
179
2
4
486
0
4
290
0
4
574
2
4
1281
0
4
522
0
3
155
0
3
211
0
3
237
0
3
181
0
3
297
0
3
420
0
3
172
0
3
229
0
3
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Keyword(s): lesson 8