from itertools import combinations
C = {i:0 for i in range(10)}
flag = False
for i in range(10):
    print(str(i)*10)
    x,y = input().split()
    if y=="locked":
        C[i] = int(x)
    else:
        flag = True
if not flag:
    x = ["0"]*10  # pw候補のリスト版
    A = list(range(10))  # pwの未確定位置
    nsum = 0
    for i in range(9):
        ni1 = C[i]  # iの位置を確定させたい
        ni2 = C[i+1]
        n = len(A)
        for z in combinations(A,ni1):
            for ind in A:
                if ind in z:
                    x[ind] = str(i)
                else:
                    x[ind] = str(i+1)
            s = "".join(x)
            print(s)
            res,y = input().split()
            if y=="locked":
                res = int(res)
                if res==nsum+ni1+ni2:
                    for a in z:
                        A.remove(a)
                    nsum += ni1
                    break

            else:
                flag = True
                break
        if flag:break