C312322331333132212111133133313331333133312121111331321121333121   >>    C31232233133313221211113313331333133313331212111133132112133312   <<    C312322331333132212111133133313331333133312121111331321121333123   >>      C312322331333132212111133133313331333133312121111331321121333122   >>