809
4
63
1317
0
53
1150
3
50
538
0
29
581
2
26
850
5
22
395
4
21
539
0
16
308
1
15
418
0
11
357
0
11
286
3
7
284
0
4
168
0
4
206
0
3
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Keyword(s): 2次方程式の解き方