C312322331333132212111133133313331333133312121111133313123231333131122112322311   >>    C31232233133313221211113313331333133313331212111113331312323133313112211232231   <<    C312322331333132212111133133313331333133312121111133313123231333131122112322313   >>      C312322331333132212111133133313331333133312121111133313123231333131122112322312   >>