program flip
  implicit none
  integer :: n, m, k, i, j
  read(*,*) n, m, k
  do i = 0, n
    j = 0
    if (n-2*i.ne.0) j = (k-i*m)/(n-2*i)
    if ((j.ge.0).and.(j.le.m).and.(j*(n-i)+(m-j)*i.eq.k)) then
      write(*,'(a)') "Yes"
      stop
    end if
  end do
  write(*,'(a)') "No"
  stop
end program flip