???é¤???¨è?a???é¤??????????
é??è?|è????£????¥????????????′è?????????|???°????????????è?????????¥????????¤§?o?è?????
?°?èˉ????????°′???解??????é???????a????????????
??????é¢????????a??¤????é?¨??ˉ???
é?£????????ˉ?oo??????
è§??¥1????????′??????????ˉ1é?¢??????é?????è??è????¤?o???¥???a????????é???????|???????????¨??????é?¨???a??
?????1??3?3??????¨?????a??1???
é??è?|?2???-è?????
è§??¥1é¥-?1??2?????1???????é???????1??1??°?????′???解è?????a??è???????oè?????è|?????±???o??1???è?|?????????a??
?¥1????¤′???
é?????è?aé??è?a??°èˉ′???a????o????1???????????1?é??è???1???a??????????¤????????±??????¢??·????????′??±????o??¥??????ˉ??????è?????????????????è??????¥1????????¨?????ˉ???é??é¢????é???????????a??
????????¢????ˉ1??1??ˉè?????????¥1???é???????ˉ????·¥??????
?¤?é???1???1??????????o???′??′???
???è?|?????¨é?¢????????????è§?é??è?|??????????ˉ1?????o?°???·???é?????è?¨????????????è?????a?????è?|?????a???????ˉ?è?????é??è·ˉ????°±??°?o????a??
a??é???o????a??
???è????′??′è?|??????????¥1?????oè?|?a????a????·??·????????¨???????????a?oo?????????a?|???é?????a??
é????????è??è?|?a????é???¥1?????????a????????é???o??°±??????é?????a??
????????ˉ??¨??????????-£?¥????é??è?|?????¨è§£é?????
é???????????????¥?éa????è?????è§????é??è?|???????1????????o??????·????o????a???????£????????ˉ??¥?????????è????????a??
???é??è?|?|???????