import sys
def maxindex(x):
	return max(enumerate(x),key=lambda x:x[1])[0]
def q(s):
	print s
	sys.stdout.flush()
	return int(raw_input().split()[0])
a=[[]for i in[0]*10]
for i in range(10):
	for j in range(10):
		s="{0:0>10}".format(j*(10**i))
		r=q(s)
		if r==10:
			exit()
		a[i]+=[r]
#print a
a=[maxindex(i)for i in a][::-1]
print "".join(`i`for i in a)