import Data.Char

main = do
  n4 <- map digitToInt <$> getLine
  let fizz = if mod (sum n4) 3 == 0 then "Fizz" else ""
  let buzz = if mod (sum $ zipWith (*) n4 (reverse [4^i | i<-[0 .. fromIntegral (length n4) - 1]])) 5 == 0 then "Buzz" else ""
  let ans = fizz ++ buzz
  putStrLn $ if null ans then map intToDigit n4 else ans