import sys
readline = sys.stdin.readline

# DEBUG = True
DEBUG = False

class Interactive:
    def __init__(self):
        self.ques_cnt = 0
        self.create_data()
        
    def create_data(self):
        import random
        x = random.randint(0,999)
        pwd = '{:03}'.format(x)
        print('created pwd:', pwd)
        self.pwd = pwd
        
    def resp_ques(self, *args):
        if args == (self.pwd,):
            return 'unlocked'
        else:
            return 'locked'
            
    def resp_ans(self, *args):
        pass
            
if DEBUG:
    interactive = Interactive()
    
def question(*args, offset=None):
    if offset is None:
        print(*args, flush=True)
    else:
        print(offset, *args, flush=True)
    if DEBUG:
        resp = interactive.resp_ques(*args)
        print(resp)
        return resp
    else:
        return readline()
    
def answer(*args, offset=None):
    if offset is None:
        print(*args, flush=True)
    else:
        print(offset, *args, flush=True)
    if DEBUG:
        interactive.resp_ans(*args)
    else:
        exit()

for x in range(1000):
    ques = '{:03}'.format(x)
    resp = question(ques)
    if resp == 'unlocked':
        break