a????ˉ?????ˉ????????????????????o??¥???a??????¢¨è°|??′è§????????????????è????????a???¥1??§?-??????¨é?£???è???§?èˉ???o??£???????????????????¤′???a??
?2?é???·?????????¥???????¤aé?3??′é???-???′èμ·???a?????è§???????èμ¢?o?????????o??????è??????o2?|1?|1èμ¢????????a??·?oo???a??
????¢¨è°|?o??·?é£?è???????????a???????ˉ??????a??
a?????è???o????a???2?é???·?????????????a????????è?2??3?°????è???2?????????a??¥?¥1è??????1???¥?-??????¨????????¨??????è??????????′??ˉ????????¢?o?è¥???????è??éo?????????????é¢??????ˉ?|1?|1????¥1??°??¨?1???????????????ˉ??¥??¥???????°???¥???????????????a??
????¢¨è°|?????°?????????a??è???°±??ˉ????????3?3????????§??2??¥??|???3???è????????a??
?????′?????°?????1???a??é¢????????¥??2??????′????|???3???????¥1??¥??¥??????è??è???-??1???????????????|è?¤?¥1è????a?|1?|1???è?3?o?è?2è?2??a??¥?????¥?-???????èˉ′?o??????????????????????èˉ′?o????????ˉ1è|?????????????a??
?2?é???·??3¨è§????????????¨??°???è?′???a???????????????¤§???????2?????1?????·????a??
a???2????????·????????·????è?????a??????¢¨è°|??¥??¨??????a????????????1??1?????¥??????a?|1?¤??????|???????????????è???§??????¥èμ????a??
?2?é???·??????|??2è£?????????3???é?3????¢¨è°|?????????????¢¨è°|???è????aè????????????°????????·2??????é?????????±????è????????????1??2???????è?????é???o|?????????????2???????è?????????oo??′????2??????????è????ˉ???é?′è??è′1????????¥???
?2?é???·?è??èo???????é?¨???è???-¥??????èμ·???é????¨?????o???????¤???????èˉ§???a??é¢??????????????1?????????¥??????a??
é¢????è§??o?è??è???????????è????¤??????è§|?¢°??°????¢¨è°|?????3?????????a???????°???a??
a??é?????è§??o????a??
�?????????颤??????????2???|�???
?2?é???·?è???¤′???????¢¨è°|?????3??????è??????????o??????èˉ?è¢????è§???????è???????ˉ?????·?oo?????¨??ˉ?????????é?′??±???????2??????a?????o?????·??????
a????????????¥??°±?¥????a???2?é???·????????????????a???|???????????????????è??è??é????????è¥?????????????a??
é¢?????????¨èo???§??????é???????¥?′§????????????????¥?è?2???
?2?é???·????è?¤??·?????????????¤?????μ?????????????????????????è?2?????????????oo??????è?????èˉ????é??????-¤??????????·±??????
é¢?????????????è??è???????ˉ????????????????o????è????ˉ????¥1è???-?é??????-??-????