14*. An Aeroflot cashier needs to deliver tickets to five groups of tourists. Three of these groups are staying at the hotels "Druzhba", "Rossiya", and "Minsk". The address of the fourth group will be provided by the tourists from "Rossiya", and the address of the fifth group will be provided by the tourists from "Minsk". In how many ways can the cashier choose the order of visiting the hotels to deliver the tickets?
14. 30. Note. If there are no restrictions on the order of the tour, then there are \(5 \cdot 4 \cdot 3 \cdot 2 \cdot 1=120\) different ways to tour the hotels. Show that each restriction reduces the number of ways by half. (MTG, 1970, No. 6, p. 72.)