?????ˉ???????a??????1????o??????????èˉ′?ˉ1??1??1???è|????é?????????????oè????????é???ˉ?è???¤???????????1′?oa?¤§?o????é?????è¥?????¤??o???¤è?°???
?????a?¥??o2è?aé??è???????????è??????o?????????????
-
??????????ˉ?é??????±??o?é????¨?§??????a?oo???é?′????????????è?2?£?è′¨??¤????¥????è?£???é????¨?§????????????oè???°??????????
?¥1????????¨?¤§?????ˉa???????1?1????????¤§???a??????oo?????1???????o???a?????£???è????¨?¤§???????¤???????é?????é??è????¥???
???é?′?-£?¥??????????é??????oo?ˉ1????o????
?|??????¤?oo?????ˉ???????oo???é?£?°±??????????o????
????????ˉ?¥1?ˉ1è????a?1′?oa?ˉ??¥1?°???????????????3?3????è????ˉ?¥1??o??3?o¤a???¤§???a??è????a????????????
??3??¨??¢é??????????????????????°è???1?é???¥???????è?£???é???????ˉ?????1??????
é????¨?§???1???è???¤?????????¥???????-????
??????-é??è?2???????????ˉ??????
??????-é??è?2??????é?£?????????è??????o??1????
è????ˉè????????????o?é?¨??????
?|?????¥1????????¨?¤§?????????è???????????é?′????????o?????°?¥?a???????1?1????????¤§???a???1??2?????o????é?£??¤?oo??ˉ???????oo?????ˉè????§?°±??′?¤§?o????
?°±?????????é?¤?3?????????1?????1???é?¤é??èˉˉé??é?1????-£????-?????°±????μ???o?°′é?¢???
è?3?o???o????1??????′??¥é??a?|a?|
????′??·2????¤????è?£?o?????¨??¨??????1?1??-?????????ˉ??′?¥??????????
é????¨?§??????ˉ?o????????????a??o?????????èˉ??????????