199
3
21
1321
12
21
1004
3
21
600
7
20
303
0
20
1419
3
20
1329
1
20
151
3
20
464
2
20
733
1
20
1060
0
20
454
0
20
224
0
20
668
2
20
598
2
20
639
2
20
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Keyword(s): #算数