1. Who can go out in the middle of work without need permission slip or ID card?
A: Ivan, Dmitry and/or Fyodor.
2. Who must need permission slip for going out in the middle of work but no need ID card?
A: Stepan, Vadim and/or Alexei
3. Who must need permission slip for going out in the middle of work, and had to leave their ID card at receptionist?
A: Vasily, Oleg, Semyon, Anatoli, Maxim, Andrei.
4. In case #1 go with #2 or #3, it means #1 must also need permission slip (but no ID card).
5. Please pay attention if suddenly #1 and #2 went alone but their satchel looked larger. It could be #3's belongings are there and they are try exiting through back door. Call the guards to check there.