# import sys; input = sys.stdin.buffer.readline
# sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

#処理内容
def main():
	while True:
		for i in range(10):
			for j in range(10):
				for k in range(10):
					num = str(i) + str(j) + str(k)
					print(num)
					S = input()
					if S == "unlocked":
						return



if __name__ == '__main__':
	main()