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+#!/usr/bin/env stack
+{- stack
+     --nix
+     --resolver lts-11.15
+     --install-ghc
+     runghc
+     --package random
+-}
+
+{-# LANGUAGE TypeSynonymInstances #-}
+
+{-
+
+Problem: Create a string array containing a representation of the 52 cards in a
+standard deck, and then a second array that shuffles the 52 cards.
+
+Start with two string arrays of the cards and suits:
+Cards: 2, 3, 4, 5, 6, 7, 8, 9, 10, J, K, Q, A
+Suits: Clubs, Diamonds, Aces, Spades
+
+-}
+
+import System.Random
+import Control.Monad
+
+data Name
+    = Two
+    | Three
+    | Four
+    | Five
+    | Six
+    | Seven
+    | Eight
+    | Nine
+    | Ten
+    | Jack
+    | King
+    | Queen
+    | Ace
+    deriving (Show, Enum, Bounded)
+
+names :: [Name]
+names = [ Two .. ]
+
+data Suit
+  = Club
+  | Diamond
+  | Heart
+  | Spade
+  deriving (Show, Enum)
+
+suits :: [Suit]
+suits = [ Club .. ]
+
+allCards :: [(Name, Suit)]
+allCards = concat $ map (\n -> map (\s -> (n, s)) suits) names
+
+data CardsGen = CardsGen
+    deriving (Show)
+
+--instance RandomGen CardsGen where
+--    genRange _ = (0, cardsLength)
+--    next CardsGen = stdNext (StdGen 0 cardsLength)
+--    split = stdSplit (StdGen 0 cardsLength)
+
+suffle :: [cards] -> [cards]
+suffle arr = undefined
+
+main :: IO [()]
+main = do
+    sequence $ map (putStrLn.show) allCards