258
0
7
345
0
6
771
0
6
444
0
5
407
0
5
477
0
4
286
2
4
350
0
4
442
0
2
285
0
2
453
0
1
401
0
1
425
0
1
517
0
1
534
0
0
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Keyword(s): 難しい問題