C3123121111113313121111331333133313311211111211113313331333133313232233131111   >>    C312312111111331312111133133313331331121111121111331333133313331323223313111   <<    C3123121111113313121111331333133313311211111211113313331333133313232233131113   >>      C3123121111113313121111331333133313311211111211113313331333133313232233131112   >>