一组hack掉好多题解的数据：
8 66
-511657297 151810723 -588294472 -271526366 58051666 -792123397 -76376854 -36217375
by ygsldr @ 2017-11-07 13:38:00
~~很有道理~~
by Vanyun @ 2018-02-23 16:26:41