474
0
21
906
0
21
626
0
21
651
0
21
578
2
21
495
0
21
1343
0
21
534
2
21
482
0
21
597
0
21
883
0
21
697
8
21
462
2
21
864
0
21
951
4
21
320
2
21
449
0
21
616
4
21
981
0
21
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Keyword(s): Math