C31232233133313221211113313331333133313331212111112113313223221   >>    C3123223313331322121111331333133313331333121211111211331322322   <<    C31232233133313221211113313331333133313331212111112113313223223   >>      C31232233133313221211113313331333133313331212111112113313223222   >>