Kulinar: Do you say that combinatory is elementary?
Kulinar: Yesterday in school, walking past the math office, I heard desperate cries:
The Five! ... and seven! and ten!! to
Looking through the open door, I saw a colleague barely restraining from laughter, a board on which the condition of the task with the factories was written, and the cries of the student reading this condition:
and 5! ... 7... 10...