#coding: UTF-8

import sys
import re
import itertools
from collections import deque

### defs ###


### main ###
cnt = 0
num = "%03d" % cnt
print(num)

while True:
	s = sys.stdin.readline().strip('\n')
	if(s=='unlocked'):
		break
	cnt+=1
	num = "%03d" % cnt
	print(num)