C312322331333132212111133133313331333133312121111112133313232131221   >>    C31232233133313221211113313331333133313331212111111213331323213122   <<    C312322331333132212111133133313331333133312121111112133313232131223   >>      C312322331333132212111133133313331333133312121111112133313232131222   >>