C111123313121111121111331333133313331323231333133313331312133313231221   >>    C11112331312111112111133133313331333132323133313331333131213331323122   <<    C111123313121111121111331333133313331323231333133313331312133313231223   >>      C111123313121111121111331333133313331323231333133313331312133313231222   >>