456
0
13
587
2
13
520
3
13
2382
2
13
426
0
13
591
0
13
735
0
13
484
0
13
1324
0
13
612
0
13
674
0
13
572
0
13
614
2
13
612
0
13
639
0
13
3338
1
13
993
0
13
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Keyword(s): 数学 展開