#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import sys

DIGITS = 10


class Key(object):

    def __init__(self):
        self.guess = [0] * DIGITS
        self.status = -1
        self.query = 0

    @property
    def guess_int(self):
        return sum(x * y for (x, y) in zip(self.guess,
                                           [10 ** e for e in range(DIGITS - 1, -1, -1)]))

    def get_status(self):
        self.query += 1
        print("{guess:0=10d}".format(guess=self.guess_int))
        [n, _] = input().split()
        self.status = int(n)
        if self.status == DIGITS:
            sys.exit(0)

    def communicate(self):
        for d in range(DIGITS):
            for x in range(10):
                self.guess[d] = x
                s = int(self.status)
                self.get_status()
                if s == -1:
                    continue
                elif s == self.status:
                    continue
                elif s < self.status:
                    break
                elif s > self.status:
                    self.guess[d] -= 1
                    break


def main():
    k = Key()
    k.communicate()


if __name__ == "__main__":
    main()