C111123313121111121111331333133313331333132232233132313231333132233313331322121   >>    C11112331312111112111133133313331333133313223223313231323133313223331333132212   <<    C111123313121111121111331333133313331333132232233132313231333132233313331322123   >>      C111123313121111121111331333133313331333132232233132313231333132233313331322122   >>