C31232233133313221211113313331333133313331212111133133313111313221   >>    C3123223313331322121111331333133313331333121211113313331311131322   <<    C31232233133313221211113313331333133313331212111133133313111313223   >>      C31232233133313221211113313331333133313331212111133133313111313222   >>