import Control.Applicative
import Control.Monad
import Data.List

main = do
    [n, m, k] <- fmap read . words <$> getLine :: IO [Int]

    let xs = do
            a <- [0 .. n]
            b <- [0 .. m]
            return $ a * (m - b) + (n - a) * b

    if k `elem` xs
        then putStrLn "Yes"
        else putStrLn "No"