889
0
50
1498
8
50
987
2
49
1362
4
49
493
0
47
2548
0
45
2759
0
45
1019
0
44
1471
0
43
1087
7
42
2086
0
42
3955
11
42
1395
4
40
1488
0
37
1497
2
37
1866
3
37
1556
5
36
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Keyword(s): 数学 作図