There are people and there exist football teams. In each football team we have to choose menager.
BUT: If team is sum then the menager is the menager of at least one of teams
Find the number of possible selections of menager.
There are people and there exist football teams. In each football team we have to choose menager.
BUT: If team is sum then the menager is the menager of at least one of teams
Find the number of possible selections of menager.