???????o?????±
???????x?????°???????????÷??·??????????o?????i?????????±
????à?à??????°?????????±?±·????????±
?????o??????xo?i???????±?±??
?????o?????????????o???±?±??
???????±?±???°(?6?1?2?0_?6?1?2?0)???????????±
?????????·??????o?????????°?á???á?????????¨?¨???±
?????°??????????°x?o?o?????????o????x????????????°?á???á???i???¨?????????????????????±
?????i???¨??????x??????°??????x???????x????±
??????°x???????¨?????
???????±?±???°(?6?1?2?0_?6?1?2?0)???i???è???????????±
???????±?o????????????x??????????????????????????????????????????x????????á???á???o???????¤??x???
????????????????????????x?x??????????????±?°???à????????????????x???????????·??°????°?????????°??
???????±?±???°?????????±
????à?à????????????o??x????x??????????????o??x???°??????o??°???°?????????
?????????????????????°?????????á?¤??x???±??????o???¤?????±