def send_rec(A):
    S = "".join([str(a) for a in A])
    print(S)
    a,b = input().aplit()
    if b == "unlocked":
        exit()
    a = int(a)
    return a

def send_rec2(A):
    S = "".join([str(a) for a in A])
    ans = "1112223334"
    a = 0
    for i in range(10):
        if S[i] == ans[i]:
            a += 1
    b = "locked"
    if a == 10:
        b = "unlocked"
    print(a,b)
    return a

X = []
zn = -1
for i in range(10):
    ret = send_rec([i] * 10)
    X.append(ret)
    if ret == 0:
        zn = i
ans = [-1] * 10
if zn == -1:
    for i in range(1,10):
        for j in range(10):
            A = [0] * 10
            A[j] = i
            ret = send_rec(A)
            if ret == 0:
                ans[j] = 0
            elif ret == 2:
                ans[j] = i
else:
    for i in range(10):
        if X[i] == 0:
            continue
        for j in range(10):
            A = [zn] * 10
            A[j] = i
            ret = send_rec(A)
            if ret == 1:
                ans[j] = i
send_rec(ans)