C31231211111133131211113313331333133313332233133313331333222313331132211   >>    C3123121111113313121111331333133313331333223313331333133322231333113221   <<    C31231211111133131211113313331333133313332233133313331333222313331132213   >>      C31231211111133131211113313331333133313332233133313331333222313331132212   >>