450
0
15
383
2
15
631
0
15
427
0
15
688
2
15
504
0
15
663
0
15
490
0
15
553
4
15
541
0
15
830
0
15
370
0
15
459
0
15
375
0
15
850
0
15
968
0
15
873
0
15
642
0
15
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Keyword(s): Math