import Prelude

main :: IO ()
main = do
  [l, m, n] <- map read . lines <$> getContents
  print $ calc l m n

calc :: Int -> Int -> Int -> Int
calc l m n = let s = l * 100 + m * 25 + n * 1
             in div (mod s 1000) 100 + div (mod s 100) 25 + mod s 25