C312322331333132212111133133313331333133312121111331333132221121121   >>    C31232233133313221211113313331333133313331212111133133313222112112   <<    C312322331333132212111133133313331333133312121111331333132221121123   >>      C312322331333132212111133133313331333133312121111331333132221121122   >>