import Control.Arrow
import Control.Monad
import Data.List
import qualified Data.ByteString.Char8 as B

main :: IO ()
main = getLine >> getLine >>= main'
    where
        main' s = readLn >>= putStrLn . solve s

solve :: String -> Int -> String
solve s k = map mf s
    where
        c = s !! (k - 1)
        mf x
            | x == c = x
            | otherwise = '*'

readLine :: IO [Int]
readLine = unfoldr (fmap (second (maybe B.empty snd . B.uncons)) . B.readInt) <$> B.getLine

readContents :: Int -> IO [[Int]]
readContents = flip replicateM readLine