s=["0"]*10
for i in range(10):
	p=-1
	q=0
	for j in range(10):
		s[i]=str(j)
		print("".join(s))
		np,l=input().split()
		np=int(np)
		if np==10:
			exit()
		if np>p:
			p=np
			q=j
	s[i]=str(q)