C31232233133313221211113313331333133313331212111133121111121111132312321121   >>    C3123223313331322121111331333133313331333121211113312111112111113231232112   <<    C31232233133313221211113313331333133313331212111133121111121111132312321123   >>      C31232233133313221211113313331333133313331212111133121111121111132312321122   >>