import Data.List as L

main = do
    content <- getContents
    putStr $ unlines $ map unwords $ L.transpose $ map formatLine $ L.transpose $ completeMatrix $ map words $ lines content
    where completeMatrix m = map (\e -> e ++ [""| _ <- [length e..nb]]) m
                             where nb = maximum $ map length m
          formatLine x = map (\e -> e ++ [' ' | _ <- [length e..nb]]) x
                         where nb = maximum $ map length x