1030
2
31
1588
1
31
1160
5
31
1843
0
31
763
1
31
712
0
30
614
0
30
1069
1
30
671
0
30
478
0
30
1466
0
30
1288
0
29
761
0
29
2376
0
29
685
0
29
3343
0
29
967
0
29
1040
0
29
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Keyword(s): #数学a