458
0
8
370
0
8
348
0
8
519
0
8
1901
0
8
340
2
8
300
0
8
606
0
8
169
0
7
300
2
7
274
0
7
306
0
7
470
5
7
587
0
7
407
0
7
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Keyword(s): maths