20745
8
670
2594
18
177
5190
15
123
2140
8
74
2658
0
71
1513
0
59
1636
0
51
2841
0
51
1204
4
36
948
0
33
1744
0
27
941
2
24
2643
22
22
679
2
21
799
0
21
395
0
18
816
10
17
13938
2
16
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Keyword(s): 難しい問題