1230
4
45
1556
3
45
960
8
44
2401
5
43
2621
0
43
2693
1
43
1330
0
42
1473
4
42
1042
4
41
668
2
40
612
2
39
504
8
39
1415
2
39
1303
0
39
1811
0
39
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Keyword(s): lesson1