C312322331333132212111133133313331333133312121111121111132112312111   >>    C31232233133313221211113313331333133313331212111112111113211231211   <<    C312322331333132212111133133313331333133312121111121111132112312113   >>      C312322331333132212111133133313331333133312121111121111132112312112   >>