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

import Data.List (foldl')

main = print . snd . foldl' f (0, 0) . map read . tail . words =<< getContents
    where
        f (mx, ans) nm = 
            if nm > mx
                then
                    (nm, ans)
                else
                    if nm > ans
                        then
                            (mx, nm)
                        else
                            (mx, ans)