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

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

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