C111123313121111121111331333133313331323231333133313331333131213231321   >>    C11112331312111112111133133313331333132323133313331333133313121323132   <<    C111123313121111121111331333133313331323231333133313331333131213231323   >>      C111123313121111121111331333133313331323231333133313331333131213231322   >>