????o￠?o??????·?￡°è′¨é?????a???????￥?12????1????a??
a??????????ˉ??????èˉ′èˉ′???é??èˉ????a??
????°?èˉ-???èμ·è?3è?1????¤′???????o|?|??????????è§???????é?￡??·?????????????????¨?oo???
è°￠???è?°??′????????????è?????è??????????????????′§???
a??????1??????3??￥????????????è????ˉ???è§???????è???ˉ1???????¤??°????????????¨???é?￠???????????????????°±è???ˉ1??????è?ˉ???????°?èˉ-????-??o?è??????????§???a??
a?????????§??°±??ˉ?????o???è?a??????è′±???è|??????ˉ?????¨???é??é?????è?ˉ?????????????o????è???¨?è??????|???????????????¨???èμ·????°±???è??????o????èˉ???????????????-????1?è§???????????¤????????????????a??
a???|????????????￥é??????????o??°?????3?-?????????????è??è???-??????????????¤?????????????????????o??????????¤±????o??????±?????????èμ??????????a??
é?￠??????????????o??°????????2è￡????????°?èˉ-è￡?????????????è?a??′è?a??????è?￥????o?????￡°???
a??????o???§è°￠???è?°????????￥é?????è????￥??o????ˉ1?????????????¤??·±??????è???????±????12??????è?a?·±????|?????¤?????¤§?????????é?¤?o??????????????1?????????a??????????????????è??è?ˉ???a??
a??????????????a??
è°￠???è?°è￠???o??°????¤????????o?è??è?2?°¤?°2???è?|??￠é?????????o|???é?′é????°?o???°??1???
????°?èˉ-??′????ˉ??????¨??????a???????￠èˉ′????2??ˉ1?????¨è????????è°￠???è?°??????è?¤??§?????????é???????????????????????????1????????????o?o?????????¨è????????????????????????¤????a??
a???￥1??????????????????????o?èˉ￥?1??????°?o???§????????¨?¤§?±?é?1????2??2?????????????????????￥é????§????????¤?￥1????????????????????????????￥1?-????èˉ￥????¤???¨??????a??
a???????????????????????a??
è°￠???è?°é￠?è§?é???-??°???°??′èμ·???????o????????1??o￠??o??￥????????????
????°?èˉ-?????§??ˉé?￡??ˉé??????????2???????o|???a?????è?????????°±???????￥??-1????1?è???o????????1′???é?￡??ˉ??ˉ?￥3?-??-?????￥????????1′????????¨?μaè′1??¨???èo?????o??????????èˉ￥???é|?????o?????1????a??
a???|?????2?????????ˉé-??o??????????é?￡????1′????????????????°??????¨??????????????°??a????1′????????°??¨?±????è????￠è·???????è??????o????a??
è°￠???è?°????????ˉ?????????è?|?°?????°?èˉ-????????￥???????°???????è?|????1????????·1?2????
?????¨?1????????￡¨????oo????????2??????
????°?èˉ-?????¨??°???????μ?????????¨???????????????????￡°???è????¨???è?|??o????ˉ??????aè§?è?????
è°￠???è?°??′??????è???1??a???ˉ???
è???????????é????ˉ??????é?????