C111123313121111121111331333133313331333132232233132313331312323321   >>    C11112331312111112111133133313331333133313223223313231333131232332   <<    C111123313121111121111331333133313331333132232233132313331312323323   >>      C111123313121111121111331333133313331333132232233132313331312323322   >>