import sys


def out(nums):
    print "".join(map(str, nums))
    sys.stdout.flush()
    n, mes = raw_input().split()
    return int(n)


i = 0
nums = [0] * 10
fixed = 0
count = out(nums)
while count < 10:
    nums[fixed] += 1
    ans = out(nums)
    if ans < count:
        nums[fixed] -= 1
        fixed += 1
    elif ans > count:
        fixed += 1
    count = ans