C312322331333132212111133133313331333133312121111113313232233311   >>    C31232233133313221211113313331333133313331212111111331323223331   <<    C312322331333132212111133133313331333133312121111113313232233313   >>      C312322331333132212111133133313331333133312121111113313232233312   >>