#!/usr/bin/python
import sys
create = lambda arr: ''.join(map(str, arr))

N = 10
res = ['?'] * N
for i in xrange(N):
    for j in xrange(N):
        res[i] = j
        print create(res)
        sys.stdout.flush()
        x = int(raw_input().split()[0])
        if x > i:
            break