C31232233133313221211113313331333133313331212111133133331313221   >>    C3123223313331322121111331333133313331333121211113313333131322   <<    C31232233133313221211113313331333133313331212111133133331313223   >>      C31232233133313221211113313331333133313331212111133133331313222   >>