Lucky Game

Chef, to entertain customers, decided to establish some kind of game in his restaurant. And here is what he invented: n players sit around a round table. There is n * m cards with unique numbers of range 1..n*m. Each player has m cards. In each set of the game each player selects some card and everyone shows his card at the same time. Card of ith player is compared to card of player p[i]. If it’s