1600
7
49
1613
2
49
1072
2
49
1118
0
49
11560
0
49
1387
0
49
2341
0
49
1720
1
49
2269
8
49
1152
0
49
1098
2
49
6474
0
49
4394
9
49
2083
0
49
1523
0
49
960
0
49
1374
0
49
387
4
49
1995
0
49
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Keyword(s): 数学