C111123313121111121111331333133313331333132232233131211111333132223221323321   >>    C11112331312111112111133133313331333133313223223313121111133313222322132332   <<    C111123313121111121111331333133313331333132232233131211111333132223221323323   >>      C111123313121111121111331333133313331333132232233131211111333132223221323322   >>