C111123313121111121111331333133313331333132232233131211111312233111   >>    C11112331312111112111133133313331333133313223223313121111131223311   <<    C111123313121111121111331333133313331333132232233131211111312233113   >>      C111123313121111121111331333133313331333132232233131211111312233112   >>