import Text.Read (readMaybe)
import Control.Monad (guard)
import System.IO (stderr, hPutStrLn)

processLine :: String -> Maybe Int
processLine line = case words line of
    [aStr, bStr] -> do
        a <- readMaybe aStr
        b <- readMaybe bStr
        guard (a /= 0)
        return $ (b + a - 1) `div` a
    _ -> Nothing

main :: IO ()
main = do
    line <- getLine
    case processLine line of
        Just result -> print result
        Nothing     -> hPutStrLn stderr "Error: Expected exactly two valid integers (where a /= 0)."