2.       After the player chooses a valid cell to place a tile in, the player should choose a tile to place there.  The program should first ask which tile (by index) the player wants to put there and read in the player’s answer.  If the index is invalid, print a failure message.  Otherwise, if the player does not have enough money to pay the cost for that tile, print a failure message.  Otherwise, add the tile to the game board, reduce the player’s money, remove the tile from the available tiles list, and print a success message.