import sys

a = ['0'] * 10
print('0' * 10)
X,S = input().split()
X = int(X)
if S == 'unlocked':exit()

for i in range(10):
    for j in range(1,10):
        print('0' * i + str(j) + '0' * (9-i))
        x,s = input().split()
        if s == 'unlocked':exit()
        x = int(x)
        if x == X + 1:
            a[i] = str(j)
print(''.join(a))