C111123313121111121111331333133313331323231333133313331333131121111211111   >>    C11112331312111112111133133313331333132323133313331333133313112111121111   <<    C111123313121111121111331333133313331323231333133313331333131121111211113   >>      C111123313121111121111331333133313331323231333133313331333131121111211112   >>