489
0
17
616
0
17
754
0
17
2038
1
17
592
0
17
806
3
16
1302
3
16
543
0
15
1146
0
14
519
0
14
798
0
14
802
0
14
398
0
13
958
1
13
664
2
13
533
0
12
846
0
11
658
1
11
502
0
11
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Keyword(s): 中一数学