Submitting a guarantively correct solution for task B, i'm
getting 'wrong answer' message. This solution is made by modifying a
guarantively correct program checked on real contests.

So I request you did you perform any manual checks of any of the
programs sent to you?

If you do not, please check the one for 'SPb SU Command Tester'.

I submitted two solutions, but i think there may be problems with
output format that is not specified in the task statement.

Please do anything because two my teams are trying to solve this
problem and also have problems.

Also, note that there are no teams accepted this easy task at this
time.

Andrew Lopatin, twice ACM world champion, date&time task specialist.