Hello, Codeforces!

Everyone wants to be unique. There are several ways to achieve that goal -- you may win the contest, be the first one to solve some problem or submit your correct solution at the last second. But for me, a usual +-2200 chill guy who lacks ability to create, this is almost impossible. So I decided to switch sides and destroy instead of creating. Today I finally found my minute of fame -- I'm the only one to make a successful hack during the round!

This hack was achieved with approx. 30 minutes of hard work and researching the situation. I wasn't sure till the very end because the runtime in custom invocation was bouncing in between 900 ms and 1000 ms (but this didn't include time needed to read the input). But with 2 minutes to go I decided that fortune favors the brave so i made my attempt. And it was successful! I gained my 100 points and skyrocketed 70 places up.

I feel pretty sorry to that guy I hacked, firstly because it was the only task solved by them, and secondly because submitting the same solution but with PyPy results in an Accepted verdict with time of 249 ms. The only thing I may say is that CP is cruel :(