C312322331333132212111133133313331333133312121111133313123231231   >>    C31232233133313221211113313331333133313331212111113331312323123   <<    C312322331333132212111133133313331333133312121111133313123231233   >>      C312322331333132212111133133313331333133312121111133313123231232   >>