content: #!/usr/bin/env runghc
  import System.Environment
  import System.IO
  import Control.Monad
  import qualified Data.ByteString.Lazy.Char8 as BS
  
  {--
  tateyoko（Open usp Tukubai）
  
  designed by Nobuaki Tounaka
  written  by Hinata Yanagi
  
  The MIT License
  
  Copyright (C) 2025 Universal Shell Programming Laboratory
  
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:
  
  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.
  
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
  --}
  
  showUsage :: IO ()
  showUsage = do
      hPutStr stderr "Usage    : tateyoko [<file>]\n"
      hPutStr stderr "Version  : Mon Jan 20 17:18:17 JST 2025\n"
      hPutStr stderr "Open usp Tukubai (LINUX+FREEBSD)\n"
  
  main :: IO ()
  main = do
          args <- getArgs
          case args of
              ["-h"]        -> showUsage
              ["--help"]    -> showUsage
              ["--version"] -> showUsage
              _          -> do readF f >>= mainProc
                               where f = if (length args) > 0
                                         then args !! 0 else "-"
  
  readF :: String -> IO BS.ByteString
  readF "-" = BS.getContents
  readF f = BS.readFile f
  
  mainProc :: BS.ByteString -> IO ()
  mainProc cs = BS.putStr $ BS.unlines [ BS.unwords a | a <- arr ]
                where arr = tateyoko [ myWords ln | ln <- BS.lines cs ] n
                      n = length $ myWords $ ( BS.lines cs ) !! 0
  
  myWords :: BS.ByteString -> [BS.ByteString]
  myWords ws = filter (/= BS.pack "") $ BS.split ' ' ws
  
  tateyoko :: [[BS.ByteString]] -> Int -> [[BS.ByteString]]
  tateyoko ws n = [ mtakes ws m | m <- [0..(n-1)] ]
  
  mtakes :: [[BS.ByteString]] -> Int -> [BS.ByteString]
  mtakes lns m = [ (ln !! m) | ln <- lns ]
  