import Data.List (unfoldr)
import Data.Char (isSpace)
import Data.ByteString.Char8 (ByteString)
import qualified Data.ByteString.Char8 as B

getL :: (ByteString -> [Int]) -> IO [Int]
getL f = f <$> B.getLine

readIL :: (ByteString -> Maybe (Int, ByteString)) -> (ByteString -> [Int])
readIL f = unfoldr g
    where
        g s = do
            (n, s') <- f s
            return (n, B.dropWhile isSpace s')

main :: IO ()
main = do
    s' <- product <$> getL (readIL B.readInt)
    s <- sum <$> getL (readIL B.readInt)
    if s' == s then putStrLn "YES" else putStrLn "NO"