133 abstract class Suit

   134 case object Spades extends Suit

   135 case object Hearts extends Suit

   136 case object Diamonds extends Suit

   137 case object Clubs extends Suit

   138 

   139 //define function for colour of suits

   140 

   141 abstract class Rank

   142 case class Ace extends Rank

   143 case class King extends Rank

   144 case class Queen extends Rank

   145 case class Jack extends Rank

   146 case class Num(n: Int) extends Rank

   147 

   148 //define functions for beats

   149 //beats Ace _ => true

   150 //beats _ Acs => false