-- yukicoder My Practice
-- author: Leonardone @ NEETSDKASU

import Control.Applicative
import System.IO
import Data.List
import Data.Char

main = g n [] $ replicate n '0' where
    n = 10
    g b ys (x:xs) = h =<< m where
        m =
            putStrLn str >>
            hFlush stdout >>
            read . head . words <$> getLine
        str = reverse ys ++ (x:xs)
        calc o = chr . flip o 1 . ord
        d = calc (-) x
        i = calc (+) x
        h r
            | r == n         = pure ()
            | r > b          = g r (x:ys) xs
            | r < b && b < n = g r (d:ys) xs
            | otherwise      = g r ys     (i:xs)