1318
12
21
458
5
21
1000
3
21
600
7
20
303
0
20
1419
3
20
1329
1
20
151
3
20
464
2
20
732
1
20
1059
0
20
454
0
20
223
0
20
668
2
20
596
2
20
639
2
20
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Keyword(s): 算数