from numpy import random
# 0 is win, -2 is lose, -1 is draw
bustscore = -1
cards = player = house = []
pres = hres = [0]

def pscore():return pres[-1]
def hscore(): return hres[-1]

def start(busts):
    global player,house,cards,bustscore,pres,hres
    bustscore = busts
    player = []
    cards = []
    house = []
    hres = [0]
    pres = [0]
    cards = 4*[i for i in range(1,14)]
    random.shuffle(cards)

    for i in range(2):
        x = hit()
        if x == 0 or x == -2:
            return x
        x = dealer()
        if x != None:
            return x

    res = player + [house[0]]
    return res

def hit():
    global player,house,cards,bustscore,pres,hres
    x = cards.pop()
    player.append(min(10,x))
    pres = [i+min(x,10) for i in pres]
    if x == 1:
        pres.extend([i+10 for i in pres])
        pres.sort()
    while len(pres) != 0:
        if pres[-1] > bustscore:
            pres.pop()
        elif pres[-1] == bustscore:
            return 0 #Win
        else:
            break

    if (len(pres) == 0):
        return -2 #Lose
    return x

def dealer():
    global player,house,cards,bustscore,pres,hres
    x = hres[-1]
    y = pres[-1]
    if x >= bustscore-4 and x > y:
        return -2 #Dealer wins
    if x >= bustscore-4 and x == y:
        return -1 #Draw
    d = cards.pop()
    house.append(min(10,d))
    hres = [i + min(10,d) for i in hres]
    if (d == 1):
        hres.extend([i+10 for i in hres])
    while len(hres) != 0:
        if hres[-1] > bustscore:
            hres.pop()
        elif hres[-1] == bustscore:
            return -2 #Dealer Blackjack
        else:
            break
    if len(hres) == 0:
        return 0 #player Wins
    return None

def stand():
    global player,house,cards,bustscore,pres,hres
    while True:
        x = dealer()
        if x != None:
            return x