?????????????¥1????????°????ˉ???????????£°é?3???a?????è??????1?????2?è§?è??????ˉ1????1??ooè???1??????????a??
é??è??è?±???é?¢é¢??????????????????????
????¥1???????2????é?????????1???¥?¢μ???
???è??????¥1è???????|?????aé?£é???o?解??°??′?¤????
?ˉ?????1?è??é??èo???o?????¥è??????1??o?èˉ¥???????????????è??èo??????°???????3??????§???
?o???ˉ???????????°é???o???????é??è??è?±??′??¥??¨é???o??1?è??é???????μèˉ?a??a??
a????????è§????é?¢??§???a??
?1?è??é????¥??°é??è??è?±?????μèˉ????è?a?????ˉ??????è?aè?????
è?????é???3???????????¥?????o|??????????????????
????·2?????¥è????a????????¤??a????o??????ˉ??ˉ???????¥?????o|è??????????¨0???
?3???????é??????????±?-?????????????????2??????????
è??????·2???????¥??o???????????¤????????1?è??é??è????ˉ?????????é??????2????
????¥1??????è?a?·±è??????¥??¥1??????
??′?????μé??è??è?±è???????¨?o|???è§?é?¢???
é?£????¤?é??è??è?±?2????è???¨????????1?è??é???o|??¨?o????????¤§??|????§??ooé¤????é??é?¢???
?1?è??é????|????1??1′?1′è????¥????????????é??è??è?±?·2?????¨?o????
a???|??|???????????o?è?ˉè?¤????o???????a??
?1??1′?1′?o¢???????????°?¤′??????é??è??è?±???
é??è??è?±?2?èˉ′èˉ??????aèˉ′???a??????????§???a??
?1?è??é??èμ??????|????1??1′?1′??????????o??????????????ˉ?è?°????????1?o?????¤§???é??è??è?±????????±??????è?????
a??è??è?±????????ˉ?????ˉ????o?è?ˉ???è?¤?o????????°±??ˉ??????è??è?±?ˉ1????ˉ1???a??
?1?è??é????????????????????????2??2???°?????¨é??è??è?±èo???????
é??è??è?±??????è??????-????????·??·?é?????a????ˉ???????1???·???a??