C111123313121111121111331333133313331323231333133313331333131212132311   >>    C11112331312111112111133133313331333132323133313331333133313121213231   <<    C111123313121111121111331333133313331323231333133313331333131212132313   >>      C111123313121111121111331333133313331323231333133313331333131212132312   >>