C3123121111113313121111331333133313223313331333131211113322231333132323221   >>    C312312111111331312111133133313331322331333133313121111332223133313232322   <<    C3123121111113313121111331333133313223313331333131211113322231333132323223   >>      C3123121111113313121111331333133313223313331333131211113322231333132323222   >>