1230
4
20
587
2
19
446
4
19
275
0
18
364
0
18
453
5
18
397
0
18
716
7
18
417
2
18
805
1
18
476
3
18
374
0
17
295
0
16
404
0
15
396
7
15
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Keyword(s): 因数分解