I have a sucefull hack of problem B during the contest, it should be added in the data of System Tset.↵
↵
[Sucessful hack](https://codeforces.net/contest/2055/submission/300735053)↵
↵
↵
↵
There is a submission that can be hacked by the data,but it is accepted in the system test.↵
↵
[The submission](https://codeforces.net/contest/2055/submission/300702901)↵
↵
↵
↵
↵
So i suppos that My hack data has not been added in the System Test,the System test has something wrong.↵
↵
↵
[Sucessful hack](https://codeforces.net/contest/2055/submission/300735053)↵
↵
↵
↵
There is a submission that can be hacked by the data,but it is accepted in the system test.↵
↵
[The submission](https://codeforces.net/contest/2055/submission/300702901)↵
↵
↵
↵
↵
So i suppos that My hack data has not been added in the System Test,the System test has something wrong.↵
↵