import random

def create_cards():
  deck = []
  for i in range(21):
    suits = ["♥","♦","♠","♣"]
    numbers = ['1','2','3','4','5','6','7','8','9','10','K','Q','J']
    card = (random.choice(numbers) + random.choice(suits))
    deck.append(card)
  return deck


def create_piles():
  pile1 = []
  pile2 = []
  pile3 = []
  for k in range(7):
    pile1.append(deck.pop())
    pile2.append(deck.pop())
    pile3.append(deck.pop())
  return piles

def user_input():

  print (pile1, pile2, pile3)
  choice = input("Which pile is your card in?")
  if choice == 1:
    deck =
  elif choice == 2:
    deck =
  else:
    deck =

def trick():
  print(0)

deck = create_cards()
piles = create_piles()

def user_input(piles):
    print(piles)
    choice = input("which pile is your card in?")