import Data.Ratio
import Data.List
import Control.Monad

(%%) n d
  | d == 0 = Nothing
  | otherwise = Just (n%d)

splitOn :: Int -> [a] -> [[a]]
splitOn n = takeWhile (not . null) . unfoldr (return . splitAt n)

main = do
  [h,w] <- map read . words <$> getLine
  space <- lines <$> getContents
  putStrLn $ unlines (triangle h w space)

triangle h w space = splitOn w $ make h w (x1,y1) (x2,y2) (x,y)
  where
    (x,y) = head [(i,j) | i<-[0..h-1], j<-[0..w-1], valid (x1,y1) (x2,y2) (i,j)]
    [(x1,y1),(x2,y2)] = map snd $ filter ((=='*') . fst) $ zip (concat space) [(i,j) | i<-[0..h-1], j<-[0..w-1]]

valid p1@(x1,y1) p2@(x2,y2) p3@(i,j) = ((x1-i)%%(y1-j) /= (x2-i)%%(y2-j)) && distinct [p1,p2,p3]

make h w p1 p2 p3 = [c | i<-[0..h-1], j<-[0..w-1], let c = if elem (i,j) [p1,p2,p3] then '*' else '-']

distinct xs = let sxs = sort xs in and $ zipWith (/=) sxs (tail sxs)