490
0
19
420
0
19
653
13
19
1077
0
19
781
8
19
665
0
19
445
0
19
922
0
19
591
1
19
1156
1
19
669
0
19
853
0
19
331
4
19
213
0
19
763
0
19
481
1
19
337
0
19
1543
0
19
570
0
19
699
9
19
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Keyword(s): Math