1613
2
49
1072
2
49
1117
0
49
11549
0
49
1387
0
49
2341
0
49
1720
1
49
2268
8
49
1152
0
49
1098
2
49
6474
0
49
4393
9
49
2082
0
49
1523
0
49
959
0
49
1373
0
49
387
4
49
1994
0
49
720
4
49
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Keyword(s): #数学