Decipher the notes
Bill: My girl, make a copy of it. The cipher is safe but it's not convenient to check with the key all the time.
Task: Unite the collection of the cipher messages.
You completed Bill's task. Your reputation in the Underground has increased by 1. You received some points of freedom and some tokens.
Bill: Good job. Wait... If we cross out this symbol and take this man for an "a"... There is something to think about.
