def func(n):
    s = "0" * 10
    print(s)
    base, _ = input().split()

    for i in range(1, 10):
        print(s[:n] + str(i) + s[n + 1:])
        x, _ = input().split()
        if int(x) > int(base):
            return i

    return 0


def main():
    print("0" * 10)
    if "unlocked" in input():
        return
    
    ans = ""
    for i in range(10):
        ans += str(func(i))
    print(ans)
    
    
if __name__ == '__main__':
    main()