C312322331333132212111133133313331333133312121111331211111211111311221123121   >>    C31232233133313221211113313331333133313331212111133121111121111131122112312   <<    C312322331333132212111133133313331333133312121111331211111211111311221123123   >>      C312322331333132212111133133313331333133312121111331211111211111311221123122   >>