???è??????°±?????ˉ????1?é???2?????????°??????????-??-??????ˉ??????????????§??????
??§???????????¨?μ??·±?????????????ˉ???°??¨?°?????2????
???é?¢??????è???¤???ˉ?????a??-?1′??·?oo????°????????????o??ˉè·3?¥?????????¥?-????é??????????¨??????
??3?????ˉ???è?????????¨?é¢??-¤?????a?????§??????é?????è§?????????-????′§???
é?£??a??-?1′??·?ooè?′??¨??°???????¤′é?????????o??????°?????????????o¢è?2???è??è?1???
è????¨?μ??·±?????ˉ?′§?′§?????±???????|??|???????èo??????????é?£??????è??????1°????????£?¤??¥?????¥?è?2???????????????a?|a?|
é?£???????????????è????a??ˉ?????a?¤§?-|??????
???è??????????¢?????????????????????????????????
?¥1??¥??o?????¨?μ??·±??????????¥1é???-??????????è???¥1???
??ˉ?????¥?????ˉa?|a?|
???????????????é???????ˉ????¥1??3???é?£??·???
?¨?é¢?????????????????????????è·a??¨??°?????????è????????a??????????ˉ?????′é????????????????????é?£????o?èˉ¥é????′?????¥???è????a??????????2???????è?¨??????è????a?oo?o????a??
èˉ′???????¨?é¢????èo????????o???????????????aé??è?£???é??????????2è???o?????°?é?′???
?¨?é¢??????¨?????°????????????è?????颤??????????°????
?¥1?1????????????3èμ·é?£??¥??¨??¨?μ??·±????ˉ??¥???????è?a?·±???????????????è????????è?±??????
??¨?μ??·±??????é?????è?3????????′?????§??o??????è£?????????¨????????·?-????
?????¥?¥1?ˉ1??¨?μ??·±?????°?¥??¥?????o???ˉ???è???ooè°???¥?o???????
?????????èμ°???????????°?§??o¤è°????
???è???????????????o?è????¥???è|??????|é?£??¤?oo????¨?é¢??????o?????a????????????è?????èo???????a???ˉ1?o????è????????????o???????è?¤??o?1???????è|????èˉ???????a??
a?????????o¢?????????é?¨??μ??±????°±??ˉé?£é?¨???é?????????????ˉ??¨?μ??·±???èμ????????|??????????????????ˉ??¥??????é?£é?¨??μ??±?????????????±?èˉ????a??
???è??????μ?èo????è????2é????¨è????????é?′????o??????o???
?¥1????1??2????????3???¨??????????1??2????????3?èˉ′??o?????a?-????