题解 | #密码截取#

import itertools
def jjj(i,jj):
    for j in jj:
        re = ip_dict2[i[0]] + j[0] + ip_dict2[i[1]] + j[1] + ip_dict2[i[2]] + j[2] + ip_dict2[i[3]]
        re2 = "(" + "(" + str(i[0]) + j[0] + str(i[1]) + ")" + j[1] + str(i[2]) + ")" + j[2] + str(i[3])
        re = re.replace("//", "/")
        all_result.append((i))
        if eval(re2) == 24:
            out.append(re)  
            return out
    return False
    
    
def dfx(iplist, ysflist):
    ii = list(itertools.permutations(iplist, 4))
    jj = list(itertools.product(ysflist, repeat = 3))
    all_result = [] 
    for i in ii:
        if jjj(i, jj):
            return True
    return False
while True:
    try:
        ysf_list, ip_list, ip_dict, ip_dict2 =["+", "-", "*", "//"], [], {"J":11, "Q":12, "K":13, "A":1}, {11:"J", 12:"Q", 13:"K", 1:"A", 2:"2", 3:"3", 4:"4", 5:"5", 6:"6", 7:"7", 8:"8", 9:"9", 10:"10"}
        for i in input().split(" "):
            if i in ("2","3","4","5","6","7","8","9","10"):
                ip_list.append(int(i))
            else:
                if i in ("joker", "JOKER"):
                    ip_list = []
                    break
                else:
                    ip_list.append(ip_dict[i])
        if ip_list:
            out = []
            all_result = []
            if dfx(ip_list, ysf_list):
                print(out[0])
            else:
                print("NONE")
        else:
            print("ERROR")
    except Exception as e:
        print(e)
        break