C3123121111113313121111331333133313223313331333131211113313331323313331   >>    C312312111111331312111133133313331322331333133313121111331333132331333   <<    C3123121111113313121111331333133313223313331333131211113313331323313333   >>      C3123121111113313121111331333133313223313331333131211113313331323313332   >>