import Data.List (sortBy)
import Data.Ord (comparing)


data Brother = Brother {height :: Int, weight :: Int} deriving (Eq, Show, Read)

instance Ord Brother where
    compare x y = let c = compare (height y) (height x) in
        if c /= EQ then c
            else compare (weight x) (weight y)

sortBrothers :: Ord a => [a] -> [String]
sortBrothers = fmap fst . sortBy (comparing snd) . zip ["A", "B", "C"]

readInt :: String -> Int
readInt = read

parseBrother :: [Int] -> Brother
parseBrother [x, y] = Brother x y
parseBrother _ = error "parse error"

main :: IO ()
main = interact $ unlines . sortBrothers . fmap (parseBrother . fmap readInt . words) . take 3 . lines