import Control.Monad (replicateM)
import Data.Char (isSpace)
import Data.List (transpose, unfoldr)
import qualified Data.ByteString.Char8 as BSC8


getL :: (BSC8.ByteString -> [Int]) -> IO [Int]
getL f = f <$> BSC8.getLine

readIL :: (BSC8.ByteString -> Maybe (Int, BSC8.ByteString)) -> (BSC8.ByteString -> [Int])
readIL f = unfoldr g
    where
        g s = do
            (n, s') <- f s
            return (n, BSC8.dropWhile isSpace s')

main :: IO ()
main = do
    n <- readLn :: IO Int
    xss <- replicateM n $ getL (readIL BSC8.readInt)
    putStrLn $ unwords $ map show $ concat $ transpose $ map tail xss