7015
0
42
641
0
42
999
0
42
999
3
42
1273
2
42
1297
1
42
1494
5
42
1390
2
41
627
4
41
1500
11
41
841
4
41
1677
1
41
2157
10
41
866
2
41
1358
0
40
1655
0
40
1147
2
40
1377
0
40
2198
6
40
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Keyword(s): 数学 問題