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

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

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

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