by the United States government

“ Property in which the estate has an interest and that is subject to a lien that is not avoidable under this title (other than to the extent that there is a properly perfected unavoidable tax lien arising in connection with an ad valorem tax on real or personal property of the estate) and that secures an allowed claim for a tax, or proceeds of such property, shall be distributed— (1) first, to any holder of an allowed claim secured by a lien on such property that is not avoidable under this title and that is senior to such tax lien ”

“ If more than one holder of a claim is entitled to distribution under a particular paragraph of subsection (b) of this section, distribution to such holders under such paragraph shall be in the same order as distribution to such holders would have been other than under this section. ”