328
0
4
626
0
4
438
0
4
420
4
4
509
0
4
652
11
4
620
0
4
234
3
4
367
1
4
207
0
4
267
0
4
421
0
4
408
0
3
549
2
3
183
0
3
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Keyword(s): 数学2