D?3áò??úó|??£??°2?è?D|???£?±
?a???áìy???ò3?à′á?£??????é??1?±?μ???°xà?ò???o?·??ú′2í·£?ó??üμ????3à?′yx??£
?°??íi?é?aòaò??±e¤x??êé??£?±
?°o??£?±
á?è?°xìi?ˉá?ò?′o3?£??áìy??íié??1?ˉá??á£?òo′??aê±??2????′à§?£
D?3á??éu?ê?y£o?°?????e£??±
?y??ê???o??§éu£??ì?y?????á??£??yμ???ò???·¢????£????üoí??1y1yê?á?£???ê?3?2?3¤ê±??£?oü?i?í°ü????à′?£
?°2?òa?£?±?áìy??2?í?òa?a??ìáòé£??°?é?a??íiòaò??±′y?ú?êé??3à?£?????ó?2??ü?ú?êé??3à????£?±
D?3áê§D|£????y?£μ??u??á?D?£?μíí·?xá??x?y÷T·¢£o?°e¤è????£?±
?áìy???2?2xi£?oí??ê???????£??°?é?a?íòae¤x??êé?£?è??êé?x?2?μ??£?±
D?3áì???£o?°D???μ??aá?£????′x?£??±
?áìy????í·?′??£??′x??′x??íè¥?°??μ?±?′??£
′-?¢?????D£?D?3áμ?x??y±??a?μ£??°x????uμ?ê?1′?T£??T?é·?1y??á??£?????úó?2??ao?′?μ??±?ó1′?T£??a???T2??á?áòx·?1y??á??£?±
?áìy??2????àμ?′?á?é?à′?£
′?3Y?àìu?¢?u÷T???¥oo?£
?áìy??μ?xi?xá??£
D?3áò2??o?μ???襣???′?????á?ò??é?£???tx?é?′|£??Dá??Doúi?£??°μ¨xó??à′??′o£????òò§?Tá??£?±
?áìy??óDD?D?Dé£o?°?êé??xì???á?£??é?a′-2?1y???£?±
?°àióéμ12?éù?£?±
?áìy??ì?o?D|D|£o?°?é?a??ò????êé?í?é?°é?£?±
?Tμ?à?óD3£±?μ?ò??à£??áìy??oü?i?í??à′á??£
é?′|2?′o£??yó????1?ˉ?aμ?ò??à£?D?D?òiòií???′?é?£?ó??úx??o′?é?í?á?ò?2?£????a?é?§μà£??°í?á?ò?£??í2??ü?xá??£?±
D?3á?μ£o?°???x?í?1?ü?x?£?±
?áìy??2??ó?a?°£??ù?x?yμ?xi??·¨?′á?£??yò22???′-2??a??á??£
í?ò?1yoo£??áìy????á??°±?£????ú???3à??′£?D?3á???y?′á?ò??á?£
???3?Dè?3ù3ù2?·-ò3£???μíí·?′襣??°2????′á?£??±
?áìy??o?é??°±?£?èió?è???£o?°???|ì??£?±
D?3á????£?è?1?è???á???èè?ixó1yà′£?·o?y???|é?£??°?T°xè??μμ??°??ìyê??′£?3£Dax????|???′?áí′£??±