I am glad to welcome you on Codeforces Beta Round 94. I hope, some more early time of start will not have bad effect on you results =)
I'm author of today problems. I'm a graduated student of SPbSU, Valery Samojlov. This is my second round. I hope, today nobody will be sorry of his participation. I want to say very big thanks to RAD, who rend me very big support with preparation of problems. Also thanks to Maria Belova, who has translate statements to English.
Please, don't be startled of unusually cost of problems:
Div-1: 1000 - 1500 - 1500 - 2000 - 2500
Div-2: 500 - 1000 - 2000 - 2500 - 2500