342
0
10
470
7
10
334
4
10
199
0
10
184
0
10
312
0
9
345
2
9
214
0
9
268
0
9
308
0
9
586
13
9
200
0
8
320
0
8
156
0
8
Didn't find what you're looking for? Try searching on Q&A, too!
Keyword(s): 中2理科