?u′?o???x?x??o?àd?á?￡?éo???3?μ2??¨??ê?o???á?￡?′o±§2?????o??￡
x?3??oxo￡?1???o?x?ou?à??÷?d???￡???x????é￡???è??÷???éá??u??￡?μ±x?éo???3oi?u′?o?μ???2??o±i??3?à′￡??°d???￡?·oè??oá??uo??á?uá?￡?oa2?oa1yè￥′oéu?do?￡??±
?°2?o?á?￡??oxoodd????à￡???è?è?ê?ê°á?￡???è?à′μ??iè??à￡?±e3?x2á?è?￡??????o??￡??oáix?á????oo?μ?′|xaxa?￡?±???é±3x?ê?￡?o??±d?′oè?μ??￡?uè???÷???á??°?￡
éo???3xi??à?x?d|￡?2?oéμ????eá??yd?ê±oo￡?éo?3?¨?uμ?ê±oo?yo2?2???§éo?3?¨μ??ˉx÷￡???ê?3?u±3oo?μ?°??ê?ê?x?￡?è????′x????é￡??àéuodd??dè??￡
??÷??à?3á?éo???3oi?u′?o?á???￡?3?ê?i???è￥á?￡?á???á?????÷??u?u???ééioo￡????é2??2??￡??dx?x?3???2???μ???÷?￡??°??è??y??x???μ?￡???à????uê??o2?ê??·μ?￡??ux?°???￡?±
??÷?2?·￥o??u￡??oê??dx?á?????÷?x?á?￡???è???à???ê?è?￡?μ1ê?2?μ￡d????éo??uμ????u2??eà′á??￡
???¨???u???¨i???′?￡?x?á?o??á?u￡????é?ix?2??ˉá?￡?è?x?è￥?°±?μ?i¤xody?￠￡??°??à??°xo?à￡???1??éo?1?é?o???ii￡???è??iè??à2?o?áix???????oa1?￡????2???o?o?°xo￡???è?od??á?￡??ox¨?????????????￡?±
???aê??1o?x??·±?od???·μ???÷?￡??a±?ou·￠°2?2á?￡?éo???3???u′oá?o???￡?1à????á??u?o￡???1a???u2???′|μ??o?￥é?￡??o?￥?uo?′|?ué?oo±?￡??iê÷?·è?￡??′2?3???i???àa￡????é?3x??yμ?êo??i?1yè￥￡??ééuμà￡??°??ê??ox???x?μ??oxo￡???????μ?o???o2??°i·¨￡??ox???2??2??oiia±?è?′o??μà￡??o?????????y??ê?2???μ?￡??????o?￡?±
??o?????ê?μ?oa￡??é?§xoiix???2?·￠￡????xi?oa?￡??1y???2?x????oxo′oè?x???dy?￠￡?·??o￡??yμ1ê???oaáix??y????x?????°2?￡
ê?????1a￡?éo???3??3?2?oi￡?é?xy?′ê?￡??°??x?????????o??￡?±
???é2?·?è?￡??μ?eá?d?ê±ooμ?o?d?ê?￡??°?ox???μ?2?3?2?μ??oxo￡?odê±oo?è??μ?i?±eà÷o|￡????°?1??′o·oooà′′o·o???μ??·¨xoá?￡?o2?i?oμuμu2?·??u￡????ê???á?°o???à′??x???????°?á??￡?±
ou?àê±oo￡????é??ê???x?i?·oè?μ?￡?????i?·oè?μ??d?é±è????è?oa??￡???x??ué?ooμ???μà￡??°??±??′ê?μ???￡?±eo??a??ê??ué?￡?oo±?ê?x?è?μ?￡????°???xμ?o???oi???3è?′3??è￥o|μ?x????è??á???ii￡?μuμu?i??á???oi???iè￥???i?ax????i?￡è￥á?￡????u?????o??à′￡??oéi±?μ???÷???ê?2?x???è￥μ?￡??ox???d?à?o2ê??2??èè??μ?￡??éê?éuo?é??￠?à￡??yéixo?i2?ê?·t￡??ê′o·o￡?′o·o???μ??i￥à?′?μ?2??￡?±
éo???3?￠x??ué?di??￡?2??a?t?1od?a?u?μ·¨μ?2?￡???±?μ?è?o???·￠??á??y??￡???????è?iu?a±?à′á?￡?éo???3d?μx?a??o?3?????￡??°è?à′á????±
?°2?°ê?μ?￡??o??à?μ???2??á33x?x???μ??￡?±
à′è?ê?i··￠?¨°xμ?à?i·xo￡??uê?i?x???iêè???odé?á??ê?iμ??d??￡?2?·￥?á?i′oèy￡??iê?o???á32?i?o??′￡?1aéiê?à?ê±￡?é???μ???1a???dx?μ?xo???u?yoi?u′?o?éié?￡??°d???￡?à?oˉ·??à1y2?diè?è?á?i?·oè????2???±
?°?od?à??aμàμ?￡?x?à?á?à′?a±?x?x?°?á?￡?′y?á?ix?￡?x???μ?éixo1????′?uá?￡??±?μ?e??i?·oè?￡????é????1??3?￡
?dxoè′??i·????￡?éo???32???μ?ê?oo?a??i?·oè?μ?2??é￡??u??ê????y??μ?3???±iê?2??u￡??°?????ˉ2?x?￡???3?á?o?ié??á?￡???è???à????i￡?d???áix??iè?è￥?°±?2?ê??￡?±
o?????2?itd2i?i?d???￡??oá3é???oá??od??itiy￡?éo???32?oiμ?i?á?i????￡
???éo???é?ê?1§?′￡??°?o?a?i′?x??y??è￥±eμ?μ?·?￡???è?è?xa′?x???￡??????o?iè￥?′?y?￡?±?μiê￡????é3ˉéo???3??x??°±?μ??oxoμà￡??°?o??è￥??±?°é?￡?±
?i???÷±?￡?éo???3???á?u??￡?x?á???2?èi2?x???i·?′￡?????è????ud??·é?￡???1a?±?±μ?i?x??y??￡?éo???3?￠?￠o￥êx￡???1yi·ê±￡???i·?1??3?á?éudiμ?o1￡?o?????2?￡??ˉêμ2???odè?′?áèà÷μ???ê??￡
?°????±e·??ud?é?￡?èuéy?ê?áê±?ux??ox???é???3?á￠??1y?u1|??￡?ooà′x???ê????1á???μ???éi???a????1|μ?￡?èuéyx??o??′eo|?μoaá??u??à???oo?ox???o?±2xo￡?x????àoo￡?x???éixo1?2?o?￡????i?′1u?eá??oxo?￡?±???é2???éo???3?o?á￡????ooi???o?u???d±???ê?2??àé???μ?￡?iyμuμu?μ?e￡??yx???±è??à????u?éà÷o|?àá?￡?ê??iê??uá?????ioê?±?é?±?￡???è??á?éμ????o2??á?éμ????o?iê?oox??a??1??μá??￡
éo???3è?od?u??￡?à?o?±2μ?ê??y?a??é?éu￡??°??ê?μ?￡???i?·oè?éixo1???oa￡??￡i??y??è??μ?′2?ê??￡?±
???éμ?i·￡???oo2??u?id??a???°iaá?￡????¨???u??μ????áè??à￡??u??è￥μ?ê±ooo??ê???é?ê?·?á?￡???x??u?oμ?è?o2à′á?￡??u′?o????????2￡?éo???3o2é??°′o?do?￡?oàê?àx??u′?o???d?????àáà′￡??u?′?′éo???3￡?dà??μà￡??°????????1??μo??od?à??i·?d?á??￡?±?u′?o??u???2?à￡?o??ao?2?èyox3é?xooè?xo?áo?1yo?d?￡???aμà??xo3u3u??od?ˉ?2?￡
?°′o?????μμ?ê2?′?°￡??ooi±i??1??μx?è?ê?o?μ??￡?±?a?uμ????á￡??uê?±?ê?ê?μ?i?xoo22??áà′μ?￡????°?y???μ?x?uê????1′?x?d???μ?′|?á??è?￡??y3éá??x￡??uê?1à??2???3?à′x??ˉá??￡
?°?3???u??é?o?￡?ou·￠?÷?t?ˉè?á??￡?±d???ê??·é?à′￡?àx?éo???3????′oá?￡??yê?1yà′è?￡??′éo???3μ???é??i?aμàd?á??u1??μo?x?￡?′?μ?éo???3?u±?￡??°?????é???2á????á?￡??±???éê??yx¨???°à′μ?￡???2??????a1y??￡?d?á??u±e?o′iá?μ?·??12??a?t?oo￡????°?yo2oi?u′?o??μ1y?a?tê?￡??u′?o?o|d?x?2??μ?°￡??yo2ê??aá?á?è?o?￡??áo|á??y2?3é￡?
éo???3á3oioiμ?￡?iix?d???ê?ê?±?è???￡??°èy?????μê2?′???￡?±
?′?yé?é?d???ê??i?aμà?y·1y2áxoá?￡?d?à??ux????2￡?o?é?μ?ê±ooéo???3oi?u′?o???μ??tê?éi±?￡??tê????êá?è?è￥???uá?￡???±?μ??ti?·oè?êo??é¨1yéo???3￡??oá??oxi??￡?2?1???d|μà￡??°à′á??ix???°é?￡?±
?tê?????éo???3μ?ê?￡??ti?·oè??ê?i′oá??1oa3?à′x??ˉ￡?o2ê?±?±?μ???od·¨xo￡??￡i?éo???32?oa·??ud?é?￡?éo???3??x?d|￡???i?μ??dá?éuiax???￡?2￠?′???ti?·oè?μ?μ??·??ud?é??￡
??ê?oi?áê?o2?u￡?2?1yx?è￥á???xà￡???ê?d???????￡??o??o?ê????u??μ??t·oè?￡???oa°￠u?·?3dμ?è?2??uéuêy￡???iy??xà??éud|o?￡???·?ê?·?o?￡?éo???33?μ?2??à￡????¨???u??μ????á?ax?éi?¨￡???é?oo￡??oxoà?±§à′á?di?à?è??￡?éo???3?a??·??ixooo?????¨·?od?u?d??￡???′?é?è￥μ???ê?d????a?àμ?μ?·oè?￡??y?ux??tê?2￠2?iué?′?￡?iy?u′?o?oioàê??uoo±?o§?u???￡
d???ê?àx??yo??±?°?ood??oaμ?ê??±oi???μμ?é??éè?éo???3d?éu?·??￡??°èy????￡?odê2?′?°?i?u?a±??μ°é?￡?±??μ?á???è?μ?μ?·?￡??yμ￡d?d???ê??μ?°?u????°???á??￡
?°?ooi???μ￡??2áé?2???è?￡????????u???1??od3¤??￡?????á|?3é?o￠xo2?ê??y?ê????±éo???3iyx??°±???μ??1dd￡???a￡???ê?á￠?′?°·?o?xa￡??°??ddê?μ?ê±oo?????ii·è??u??±?￡?èièiμ?￡?è???·o?y??è?μ?à?±?￡???ooo???ê±3?iéx?±e?ˉ￡??3o￠xoμ????ê??d????±
éo???3?y???êê2?′è??uà?±?￡???é?d???ê?·ooiμ??u?u2?·′o|1yà′￡?á3é?i¨oi￡???x?2?xo?u??á?￡?d???ê????y2?o?oa??￡?3?x?é¤??o°￡??°??????3tá?￡?èy????ê??a??o??￡?±
o?·??°oyμ?2?éuè???1a???uéo???3éié?￡??tê?o2oé?oμ?i?á?1yà′￡?éo???3?￠oix?á3x?μ??tê??u?°￡???o2μ?d|á?d|?￡
o1à?￡??′êtiêié?u′2é?￡???2????i?àá?1yà′￡?′?μ??y?u±??ê￡??°iy?μ??è?èy????oi???μá?ê2?′odè¤μ?ê?￡????μ???oiyiy￡??±??2????ˉê??ˉ??￡?éo???3??á????i°u???oà′￡?o§x?′?￡??aμà??iiê?±u2?á?μ?￡??÷d?ê?ê??a??·¨xoo2o?￡??y????2???á?￡??3á?o￠xo??ê??iμ?i￡??￡????yo?3￠2?ê?o????ai?￡????÷°xá?￡??y?i?÷?ˉ?§x???2????￡
μ?μ???o|￡???2??????1odd????à?ád???ê??μμ??°￡?é???2￠o?￡?′y?yèiá?éixooo2??dè??yia￡?·￠3?o?éu?ux?μ?à°i?￡?o?±2xo????éá2?μ?3?à′??
éo???3??x?d???ê?μ??°￡??′x?ê±?u￡?oaiuéi??è??ii·￡???2???o??a?yéixo2?ê?·t￡?·??oá??ˉx÷￡??°ê?2?ê?o?i?á?￡??±′????u?y?u?u±?￡????t3??yμ?èiè?à′￡???oa??x??u??3???￡??yéixo?i??èi￡?μuo?ii±?ê?o??a??·¨xo??iuá??yo?iié??￡
éo???3oaè??ii·￡?2??é±u?aoai§i?￡??a??￡?è???2???ê?·tμ?á?????￡??iμ?éixoo?3?￡?á?è?iuo?μ??u??á?￡???éo???3μ?éixoè′èiá???à′￡???o?x??u?dμ????ê￡???2???éii?ou·￠??èè￡??￠?uo2′oá??eà′??
éo???3μ??oè??t?uiy?u???u??à?o???2??a??μ?d?μ÷￡???·?é￠?a￡????11?μ?é?ê2?′?ii·￡?′?￠o?éu±èo?éu??￡??ux?oo′?μ??￥μ???
éo???3?à?ào§x?′?￡?ê?x§x???±?μ??ii·￡???é???2¨μ′?u￡???????à?￡?x?ooo???od??èèμ?oêè÷?uéié?￡?èèμ?à÷o|??
??2???±§x?éo???3è￥??·????′éixo￡?éo???3??i???μ?ê?￡?2??ˉ￡?á3é??1′?x??′é￠è￥μ?????￡?oii¨i¨μ?￡?é·ê??ˉè?￡??°?oiéo??á?u￡????èè￥°é?￡?±?′??2?????ê???è???????iu?yμ?￡???ê???od?3o￠xo2?ê?3??·á??￡
??2???ouoéμ?i?x??y￡?i?xoé￠·￠x??yo±÷è?oμ?1a￡??°ê?2?ê????u2?ê?·t￡??±
éo???3o?i·￡???2???o????aá?±?xo￡?éo???3′od?￡??°??￡??iê????iê?2????ˉ?￡?±
??2???é?é?o??é￡?i??u±§?y￡?éo???3??á?·¨xo￡???μ?′?μ????u±?à?êμ?μá?￡???2?????1a?￠±?￡?2?1??yoa??±§x??yè￥??·?á?￡???o?2?èyox2?3é?x￡??y?3?dá??????′°i￡?o???￡???2???3é?xo??ê?à????o￠xo￡??y??2???ii?±ê2?′￡?
éo???3x??u??i°à?￡???é?2o°x￡?è?1?d???ê??μμ?·¨xoê???μ?￡????y??xoà?μ?o￠xo2?ê??é?uá÷μ?á?￡?oix?????￡??eéi?uá???è￥￡???2???1oo?·txaéi??à′???y??oa??x?o?éà??x?á33?è￥á?￡??′?￡?u?iê??u?t￡???2????±á?￡?′?o?o?éàx·é??°￡??a??￡?è′·￠????·?μ???±?è?′oia±???á????￡
′oáio?2à3?è￥xaè￥?°±?￡?·￠???yxo′oà???é?á?￡??′?o???uμix?i·μ???÷?￡???2????μo?étxo￡?2??÷°xéo???3??′oo?à′￡???????oi?yo??e1yè?xo￡?odá?o￠xo￡??yd????¨?i??á?￡??′?y??d????i?aμà￡??°á???????oaê?μ??i??á?￡?è????′à′￡??u2??uè??y?????3á?o￠xo?￡
μu94?? 094 ??3??à2o
??2???ê?x?????￡?à?±?ê??????ˉ?2￡?éo???3?u???u?°??d?′o￡???2???2??ox2?a??è??yéu??￡?è?μ?′°?§±?￡?éo???3?è2???ài??￡?′°?§x?è?′o2??aμ?￡??°°￠?3￡??a???￡?±iué?è￥￡??áéu??μà?￡
éid????ˉ￡???2?????x?odè?x?á?1yà′￡???2???o??aê?éo???3￡?????o??2￡???a￡?éuo?′?à′oiè?o??èà???????￡??°o?oˉ￡?·oè??ˉ??á?￡??μè??uè￥êé·????io?ii?￡?±áá??2??aá?è?·￠éuá?ê2?′￡??yoiáá?a???yê?ê°±?èi￡?2e??à′??à′μ??°??é?d?μ?￡?éo???3??x?á3?uá?3?à′￡?á3é??uê?àá￡??′′2é?μ??ˉ?2á?è??y?÷°?1yo?·?￡?2??????eà′2?ê??￡
è?′oéuoˉè￥êé·?áá??ê?2??ti?μ?￡?·o?t′2i·′o?u′2?2oi￡?è?è￥êé·?±?odd?è?xêá???xo￡?oo?uμ??1ê?x??o?÷xo￡??é??áá???3?o′22à￡?éo???3??°o?1?￠?￠?á2ux?￡?áá?a?y·têi?y?io?￡?x??o?÷xo2?°??t￡???á????u???tá?2?éu′?á?￡?áá??éi?a??2?o2??·¨xo￡?d?d?′?μ?′°?§±?￡??1μiá?éuo?μà￡??°′oéuoˉ￡?·oè??u?t￡?o22??a·￠éuê2?′ê?á??￡?±
??2???′??÷￡?é??￠o????i?÷°x1yà′á?￡?éo???3????ê??o?áá???μ?oa??￡?éo???31à??o??a??2???oao￠xo2?éuá???μ?￡???μ??a??￡???2???o???d?o??t??￡???éo???3éμo?????x??o??od°??°?μ?÷°x￡?d?éuoiáá???μá?á???￡?xaéix?á??￡
áá????μ?′2±?￡???x?′°?§μà￡??°′oéuoˉ?μ??è??uéu??ê???2???￡????i?u?oxoà?ê?o1￡?ii????è??ˉoiá?￡?o1à??1ê?odá1??μ?￡?oa2?oa??????′oéuoˉ±§′2±?xo￡?±ex?á1á?2?ê??￡?±
éo???3o2μ￡d??eà′￡??y?±?±μ???oao???o￠xo?12?ê??aá???￡????tê??êμ?è?á??1??μ±μu￡?3?è￥±eè????′?′??￡??é??è′2?ái?é￡???2????ˉx÷′??3·??÷2????y?3o￠xo￡???oaμ?2?1yê?x??oμ?éixo°?á?￡???μ??ad?￡?éo???3±éi?éuo?￡?o???x1è?á?±u??￡?áá?????yx??u′2é?￡???x?éixo￡?i?á??u??￡??°·oè?￡?′oéuoˉ?à?uμ?d????o?????′?u??à?￡??u±e?o?áá????￡?±
éo???3i§?ei·￡?á3é?è?ê?àáo?￡?áá??oiáá?a??êoo???￡?d???2?d?μ??a??3?è￥á?￡???2????3ê?x?á???à′￡????y??±??x?u??μ?d?1·???u????à?￡?d?à?????μ?μ?2?i′?i?uê±??á?￡??àé?′2￡?àx??y￡??aêiμà￡??°?????ud?2??aμà???dà?o|￡?éuo￠xox?ê?dx??￡????1?u·￠oy￡?′yê???°??êá?oao￠xoo22?3u?￡?±±§x??y￡???x??oμ?éixo???yè??ˉ￡?è?è?2?iáx??oμ???d??￡
éo???3??x??yd??uμ?o?xo￡?ê??y?tμ?￡???°oé?μ?3yo?o2ê??yá?μ?￡???xo?￥?￥??é?￡?ê??§é?è?d???μ??￡??￡?????μà￡??°?éê??o?iê???oao￠xo?￡?±éo??è?±è?y?1d???odo￠xoá?￡??y???′2??uod?￡
??2???o?d|o?o???￡???2???·??°?1ê?°x?μá?￡?àx??y￡?oiéu??oêμà￡??°??oa?o???iê?á?￡?è?ê???μ?￡???è??àμ?x?￡?éu?àéuo￠xo??dd?￡?±?μx??°￡?éixo?3′|odá??ˉ?2￡???2???2??u?1o?￡?3áéi??è??￡
x?ooè?á?éo???3μ???￡???2???d?à?è′2?i?ê?i1￡???é?′o??i?·oè??oxo??à′￡?μuo?′???iá????x?éo???3￡???ê?è￥á?êé·?￡??d??1o??1¨′o·oà′o?i?￡?·o?t??μ?ê?????μ?2??à￡?±uxoià?u??oy￡??é?￡o|′o￡?3y′???ia??o22??a?t???′è???xo2??3?d?￡
1¨′o·oiyiê??2????u?μ￡??tx?oud????÷á?di??￡?2??÷°x??2???μ?oa??￡??????êo2?tê?á?￡??12???oao￠xo￡?êμ?uê??μ2?1yè￥￡?3áo÷μà￡??°·¨xoo22?ê???od￡?·oè?μ?d?è?xo?éê?x?μ?￡??u??x?ê±??￡????d??è?2?ddê??iê?á??￡?±1¨′o·od?à???3t??2?????éo???3?′μ??à??oa2??á?μ?a??·¨xo?￡
??a￡?±???2????u??á?￡?????ê±??2??u??￡??u?oé?d?è?xo￡?o??????i???′??iiá?￡???d?à?2?à?oa￡?1¨′o·o3ox???2???ouá?á3d?à???d?￡???1÷xoxu???a??á?2?èyox￡??yá??yé?é?￡??°?u??′?è????°i?3?à′?idd?￡?±
2???3?o??i??od?a??·¨xoá?￡?????á???ê±3?￡?d???￡?·oè???xoà???2??¨odá?o2?μ2?x?￡?2?1y?′??2???è?od?u??￡??????à?ê￡???1o??è???????2???￡????êê?o???￡????a???÷xod?à?o2od??·??·???￡
??2???μ?á?·¨xo￡???μ??oxo￡?éo???3à?à?1?1?μ?oi′oé??μx?ê2?′￡????￠?￠3áá?á3￡?éo???3?u??????÷?d????u?°?i??odà?￡???????oá2???μ??i??￡??′x??yè??????2μ?2àá3￡???2???d?à?2?ê?i1￡?ê2?′ê?·?μ???è??dμ??y?y?μ?°￡??±?oè?áá???oê?ááé?xa′?2??iê?o?á?￡??￡
éo???32??aμà??2???d?à?μ???·¨￡?oà1a?3??o??¨°μoué?μ?éid?￡??°·?o?xa￡??°???è??è￥°é￡??ixoμ?ê??é???è?′x?￡???1?μ?°iê??o·?d??￡?±?°iê￡??3d|oˉoˉμ??¤1yi·￡??eéioi??′o?do?￡??°??à′á?￡??±
??2?????è??u???u￡?d?à?o??¨éo???3oi′oé??μμ???2?ê??ixoμ?ê?￡?éo???32?????2?o?￡???μ?éo???3odá?x??oμ????u￡???2???á3é?ou·￠o?3áá?￡?′oé?ê?à?i???ê±?d????2?????1aà?uyμ?é¨1y??￡?′oé?o??u￡??o?iá?2?·￥?￡
éo???3??ê2?′?d??￡?é??°àx???2???μ?ê?￡??°?éê??|iêá?￡???1?μ??μ?ixoéuoao?￡?di?àè???????è￥￡??oè?′oé?oi??1?μ?°??o?￠x??éod??ooa???ixoμ?￡??o???¨???÷??±±?÷?ao????ixo￡?????μ?è?o?￡??±