871
4
63
1385
0
53
1225
3
50
614
0
29
632
2
26
886
5
22
432
4
21
382
8
19
572
0
16
346
1
15
467
0
11
396
0
11
299
3
7
186
0
4
325
0
4
232
0
3
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Keyword(s): 2次方程式の解き方