ans = ""
for keta in range(10):
    maxi = -1
    maxx = -1
    for i in range(10):
        print(ans + str(i) + "0" * (10 - keta - 1), flush = True)
        x, m = input().split()
        x = int(x)
        if x == 10:
            exit()
        if x > maxx:
            maxx = x
            maxi = i
    ans += str(maxi)