local h, w, k = io.read("*n", "*n", "*n")
local f = false
for i_h = 0, h do
  for i_w = 0, w do
    if(k == w * i_h + h * i_w - 2 * i_h * i_w) then
      f = true
      break
    end
  end
  if f then break end
end
print(f and "Yes" or "No")
