-- yukicoder My practice
-- author: Leonardone @ NEETSDKASU

main = getContents >>= putStrLn . unwords . map show . solve . map read . words

solve (n:xs) = baz n xs

baz n xs = foldr (bar n) xs $ reverse [1 .. 2 * n - 4]

bar n i xs = foldr (\k xs -> foo k (i - k) xs) xs . reverse
           $ [k | k <- [0 .. i], k < i - k, k < n, i - k < n]
        
foo p q as = bs where
    (xs2, (aq:xs1)) = splitAt q as
    (xs4, (ap:xs3)) = splitAt p xs2
    bp = min ap aq
    bq = max ap aq
    bs = xs4 ++ [bp] ++ xs3 ++ [bq] ++ xs1