module Main where

main :: IO ()
main = do
  { h <- getInt
  ; q <- getInt
  ; u <- getInt
  ; let
      (d,m) = divMod u 25
      (d',m') = divMod ((q+d)*25) 100
      (d'',m'') = divMod ((h+d')*100) 1000
  ; print (m+(div m' 25)+(div m'' 100))
  }

getInt :: IO Int
getInt = read <$> getLine