C31232233133313221211113313331333133313331212111133132223131232311211331   >>    C3123223313331322121111331333133313331333121211113313222313123231121133   <<    C31232233133313221211113313331333133313331212111133132223131232311211333   >>      C31232233133313221211113313331333133313331212111133132223131232311211332   >>