C312322331333132212111133133313331333133312121111331333132213331333132322231121   >>    C31232233133313221211113313331333133313331212111133133313221333133313232223112   <<    C312322331333132212111133133313331333133312121111331333132213331333132322231123   >>      C312322331333132212111133133313331333133312121111331333132213331333132322231122   >>