class KuhnPoker:
    def __init__(self):
        self.cards = ['J', 'Q', 'K']
        self.actions = [0, 1]  # Check/Fold=0, Bet/Call=1
    
    def is_terminal(self, history):
        return history in ['00', '10', '010', '011', '11']
    
    def get_util(self, cards, history, player):
        if not self.is_terminal(history):
            return 0.0
            
        card_values = {'J': 0, 'Q': 1, 'K': 2}
        p0_cardv = card_values[cards[0]]
        p1_cardv = card_values[cards[1]]

        p0_wins = p0_cardv > p1_cardv
        if history == '00':
            if p0_wins:
                return 1.0 if player == 0 else -1.0
            else:
                return -1.0 if player == 0 else 1.0
                
        elif history == '10':
            return 1.0 if player == 0 else -1.0
            
        elif history == '010':
            return -1.0 if player == 0 else 1.0
            
        elif history == '011':
            if p0_wins:
                return 2.0 if player == 0 else -2.0
            else:
                return -2.0 if player == 0 else 2.0
                
        elif history == '11':
            if p0_wins:
                return 2.0 if player == 0 else -2.0
            else:
                return -2.0 if player == 0 else 2.0
                
        return 0.0
    
    def get_Info_set(self, card, history):
        return f"{card}.{history}"
    
    def get_cur_player(self, history):
        if self.is_terminal(history):
            return -1
        return len(history) % 2
    
    def get_valid_act(self, history):
        if self.is_terminal(history):
            return []
        return [0, 1]
    
    def get_act_name(self, history, action):
        if history == "01":
            return "Fold" if action == 0 else "Call"
        else:
            return "Check" if action == 0 else "Bet"