753
2
7
531
0
7
230
2
7
523
6
7
248
0
7
657
6
7
536
2
6
472
6
6
280
2
6
392
0
6
302
0
6
275
0
6
280
0
6
209
0
6
500
2
6
128
2
5
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Keyword(s): 代数