C312322331333132212111133133313331333133312121111331333132213223331231   >>    C31232233133313221211113313331333133313331212111133133313221322333123   <<    C312322331333132212111133133313331333133312121111331333132213223331233   >>      C312322331333132212111133133313331333133312121111331333132213223331232   >>