23831
74
1735
3111
0
191
3161
2
171
5282
9
69
1284
0
64
816
4
63
863
7
53
1321
0
53
1159
3
50
877
0
49
801
2
49
1590
0
38
1162
11
37
844
14
32
475
3
30
544
0
29
585
2
26
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Keyword(s): 2次方程式とその解き方