C312322331333132212111133133313331333133312121111331333131323221323113312231   >>    C31232233133313221211113313331333133313331212111133133313132322132311331223   <<    C312322331333132212111133133313331333133312121111331333131323221323113312233   >>      C312322331333132212111133133313331333133312121111331333131323221323113312232   >>