-- Try AtCoder
-- author: Leonardone @ NEETSDKASU

main = putStrLn . solve . map read . words =<< getLine

solve [n, m, k] = ans where
    xs = take 1 $ do
            a <- [0 .. n]
            b <- [0 .. m]
            let u = a * (m - b)
            let v = b * (n - a)
            if u + v == k
                then [1]
                else []
    ans = if xs == [] then "No" else "Yes"