????¥????é???o??????????è???£°?????£???a???-£?£???¥??????é??????o???????è??解??3????????¥????????????è′1????o????a??
è′o?-£?£?é??é?????è§??¥1???
é????ˉ????1′??·?¥3?o????????1????????????oè????1???????????¥???????¥??????°????????????????1????????o??????°è????ˉé??????±?é?3????????±?????????
è′o?-£?£??2???oé???¥1???
???è????2?o?????¥1??????????????????????μ??·??????????a??è?????????o??????ˉ??¥?????????a??
è?¥èˉ′????¥??2?????????1?????¨???é?£??ˉ?????ˉè????????é?a??-é????-??????è°???????è°?é????????????????????
??a??ˉ???????1′?oo??????????????????é??è???¤a?¤????
?¨???????????¥???¨?¤?é£?é????????????3¨è§???????è?2???é????????é???|?????-?è?|???èμ°????¥1?????????èμ°???è????§????¥?é?????
?¥?é??é???????ˉ????o??¥?????¤??o?????2??????????????????¥??????????o???¢?????°?¤?é?????é???????????
????¥??-£????¤????????????o??§??????èo??????′è¢??????a???????????·??§???è???????????
?????aè·???????
?¥1è¢???·?oo?????¨?¥?é???¢??£???????
é??è???a??£±???????????????????¥????è§??±?é?3??¤??¨???è??????′??????¨????¥????
?¥1????????¨??????a???±?é?3???????????????a??
?±?é?3??ˉ????¥1???é???????·????????ˉè???·???o??°??¥????????·??§?????????èo??????o?????¤???????¥3?oo??????è?ˉ?????′??a?§???????è???????aa?|a?|
????????????????¥????é?????è?????
?¥1??¤??a???è??è¢??oo?????????é???????¢??¢??°é????¨?¤′é?????
??|????·??·?é??????°′?????·??§?????ˉ?????·?′???¨?¥1?????????è?3??1???é?¢???a???????o?????????è|?è·?????|???????a??
????¥?????¤′????-£è|?èˉ′èˉ????