Theatre row, the card game

• Take one pack of 52 cards
• Remove 7 hearts and 8 clubs, discard the rest
• Shuffle and deal the 15 cards in one row face up

A couple are formed by a heart and a club being next to each other. How many couples are there?

This game implements problem 15, the theatre row, from Fifty Challenging Problems in Probability with Solutions by Frederick Mosteller.