T?T?T?T?&? ? Oóe&? ? Oóe&? ? Oóe&? ? Oóe square6---- ? O0 K¥ ? O0 K¥ ? O0 K¥ ? O0 K¥ square6----@??B& ? O? 8@??B& ? O? 8@??B& ? O? 8@??B& ? O? 8 square6---- ?& ? O? 8 ?& ? O? 8 ?& ? O? 8 ?& ? O? 8 square6----??AG c ? O? 8??AG c ? O? 8??AG c ? O? 8??AG c ? O? 8 square6----|?-ù& ? O? 8|?-ù& ? O? 8|?-ù& ? O? 8|?-ù& ? O? 8 T?T?T?T?&? ? Oóe&? ? Oóe&? ? Oóe&? ? Oóe á? 2? é[á? 2? é[á? 2? é[á? 2? é[ ??'??'??'??' ??? ? ?6 ?' ?6 ?' \è? ?\è? ?\è? ?\è? ? ? ? ? à? ? ?E24á? u? u? u? u? ?S??? +'èXê ¤a u? ¤a u? ¤a u? ¤a u? 0*üJT,Xt-1oD,?0(à0?,XG>5?/?D0*üJT,Xt-1oD,?0(à0?,XG>5?/?D0*üJT,Xt-1oD,?0(à0?,XG>5?/?D0*üJT,Xt-1oD,?0(à0?,XG>5?/?D T?T?T?T?&? ? Oóe&? ? Oóe&? ? Oóe&? ? Oóe V 2V 2V 2V 2??? ? |o?4z3o 2 2 2 2??? ? ?6 ?' ?o aèJY ?&?Kè ¥*ó!/?è ′5à ¥ ?6 ?' ?o aèJY ?&?Kè ¥*ó!/?è ′5à ¥ ?6 ?' ?o aèJY ?&?Kè ¥*ó!/?è ′5à ¥ ?6 ?' ?o aèJY ?&?Kè ¥*ó!/?è ′5à ¥ *ó ?6èJ ü ?6 ?'YF?{*ó,ìf0*üo? ? 4h ?ê\? 4h ?ê\? 4h ?ê\? 4h ?êEH ?? _?AE@??EH ?? _?AE@??EH ?? _?AE@??EH ?? _?AE@?? ? 4h ?ê"?ê G?ab? 4h ?ê"?ê G?ab? 4h ?ê"?ê G?ab? 4h ?ê"?ê G?ab ---- ? O0 K¥ ? O0 K¥ ? O0 K¥ ? O0 K¥  ? O ± ? O ± ? O ± ? O ± 2 2 2 2 ?6 ?'"uY ?o! ?6 ?'"uY ?o! ?6 ?'"uY ?o! ?6 ?'"uY ?o!  YF? ?&?Kè, ü,ìfYF? ?&?Kè, ü,ìfYF? ?&?Kè, ü,ìfYF? ?&?Kè, ü,ìf 0*üo1±? ?'?n,X6(?× ?6 ?' ?o aèJ0*üo1±? ?'?n,X6(?× ?6 ?' ?o aèJ0*üo1±? ?'?n,X6(?× ?6 ?' ?o aèJ0*üo1±? ?'?n,X6(?× ?6 ?' ?o aèJ Y ?&?Kè,X,ìí!5B ¥*ó ?êè{*ó ?6è ?&?Y ?&?Kè,X,ìí!5B ¥*ó ?êè{*ó ?6è ?&?Y ?&?Kè,X,ìí!5B ¥*ó ?êè{*ó ?6è ?&?Y ?&?Kè,X,ìí!5B ¥*ó ?êè{*ó ?6è ?&? Kè{*ó,ìf0*üoè/?Kè{*ó,ìf0*üoè/?Kè{*ó,ìf0*üoè/?Kè{*ó,ìf0*üoè/? LtYoLtYoLtYoLtYo è1T/?è1T/?è1T/?è1T/? YoYoYoYo ??? ? 2?? 2?? 2?? 2?? ??? ?+êoéCKèLcêor?5àr?× +êoéCKèLcêor?5àr?×+êoéCKèLcêor?5àr?×+êoéCKèLcêor?5àr?× ??? ? ?6 ?'Y ?F?ú,XYoE24áú×? ?6 ?'Y ?F?ú,XYoE24áú×? ?6 ?'Y ?F?ú,XYoE24áú×? ?6 ?'Y ?F?ú,XYoE24áú×?  K¥ K¥ K¥ K¥ 3 2h3 2h3 2h3 2h??? ? tM6"? GaGaGaGa ??? ?t?ê?ú?t`è×?+-?×t?ê?ú?t`è×?+-?× ??? ?/Yo?*üYo·ó7á ?F?úí±+-F?ú,X /Yo?*üYo·ó7á ?F?úí±+-F?ú,X/Yo?*üYo·ó7á ?F?úí±+-F?ú,X/Yo?*üYo·ó7á ?F?úí±+-F?ú,X 0*ü×0*ü×0*ü×0*ü× ??? ?.BnYo??0?G>5?/?"?·Yo.BnYo??0?G>5?/?"?·Yo? ?? ?  K K K K¥¥¥¥ t?ê×/Yo×.BnYo  r£ 2£ 2£ 2£ 2   rr * 2 * 2 * 2 * 2 ′ r 21 21 21 21 ′r 21 ò 21 ò 21 ò 21 ò   rrX òX òX òX ò r ( ò ( ò ( ò ( ò ----@??B& ? O? 8@??B& ? O? 8@??B& ? O? 8@??B& ? O? 8 à′ ?à′ ?à′ ?à′ ? 6 2??6 2??6 2??6 2???0*übêT,Xêoêêo,X üo0*ü4??0*übêT,Xêoêêo,X üo0*ü4??0*übêT,Xêoêêo,X üo0*ü4??0*übêT,Xêoêêo,X üo0*ü4? aEHG? ü? \??\??\??\???,è"?EH4?? ? KSê4y-á? @ O@ O@ O@ O EHo,XEHo,XEHo,XEHo,X9/9/9/9/?+G>5?/?"?· ?·?· ?·   r£ 2£ 2£ 2£ 2 2 2 2 2EH ?? _,X     == EHo,XEHo,XEHo,XEHo,Xaxaxaxax??? ? ?o!7 ?o!7?o!7?o!7 _oBó _oBó _oBó _oBó EHo,XEHo,XEHo,XEHo,XI?I?I?I???? ?  ××× ×  @ O@ O@ O@ O _V? ò/??oè?-1   èèè è  èèè è   èèè è" "" ééé é ??? ? ééé é tM6,XEHo?   =∑?  +++ ++?!7 ?,XtM6t? ü ü ü üh*ütM6"??·?·?· ?· r   ==    =∑?  +++ ++?!7 ?,XtM6t? ü ü ü ü r     ?=?=?=  @ O í@ O í@ O í@ O í £ 20£ 20£ 20£ 20? EHo"?EH4?,X ?ê??_? ___ _  A?4? ò/ê,XEHo ò?A?4? ò/ê,XEHo ò?A?4? ò/ê,XEHo ò?A?4? ò/ê,XEHo ò? "??? ?EHo ò+ ü ?o ò!7??×?EHo ò+ ü ?o ò!7??×?EHo ò+ ü ?o ò!7??×?EHo ò+ ü ?o ò!7??× ? ò?a ?!?EHo???? ò?a ?!?EHo???? ò?a ?!?EHo???? ò?a ?!?EHo??? !7Bó? )!×!7Bó? )!×!7Bó? )!×!7Bó? )!× ? òLE4? V,èbEH× ?μYL?o0*ü?èEHo?μYL?o0*ü?èEHo?μYL?o0*ü?èEHo?μYL?o0*ü?èEHo ¥*ó0U ?èJ0U ?1b ¥*ó0U ?èJ0U ?1b ¥*ó0U ?èJ0U ?1b ¥*ó0U ?èJ0U ?1b L?o??×L?o??×L?o??×L?o??× ?·??·??·??·? !??!??!??!??     !??!??!??!??    !??!??!??!??     = ___ _  ò/?-ê?è?P? èèè ètM6 tM6 hhh h  èèè è ?NJS ?EH ? o oo o  ùùù ù  èèè è-ê-à'?G? -ê-à'?G?-ê-à'?G?-ê-à'?G? ρ||| | ùùù ù  ??? ?A?4??,XEHo ò A?4??,XEHo ò? ?? ? ?·??·??·??·? h*ütM6"?è+G>5?/?"k?h*ütM6"?è+G>5?/?"k? ( )       ??=?????=??= ρ ( ) ??? ?kEHo ò !8,è4??/?!8,è4??/?!8,è4??/?!8,è4??/?    ?=?=  ---- ?& ? O? 8 ?& ? O? 8 ?& ? O? 8 ?& ? O? 8 AE@ ?6,X1/?r_?AE@ ?6,X1/?r_?AE@ ?6,X1/?r_?AE@ ?6,X1/?r_? ??? ? ??? ?"QE:? ?,?EH "QE:? ?,?EH"QE:? ?,?EH"QE:? ?,?EH ??? ? ??? ???|EH ??|EH 6 2??6 2??6 2??6 2??? ? ü V,èbEH,XGM6Y,XoJ0*ü?? ? ü V,èbEH,XGM6Y,XoJ0*ü?? ? ü V,èbEH,XGM6Y,XoJ0*ü?? ? ü V,èbEH,XGM6Y,XoJ0*ü? \??\??\??\???ê ?,ìF?ttM6{*ó4?EH,X,ìíE@|?ê ?,ìF?ttM6{*ó4?EH,X,ìíE@|? AE@?|AE@?|AE@?|AE@?| ? ££££?1AE@ ?6,Xê ---- ?& ? O? 8 ?& ? O? 8 ?& ? O? 8 ?& ? O? 8  ?g ó O Yg? 8 ?g ó O Yg? 8 ?g ó O Yg? 8 ?g ó O Yg? 8  ?|EH?|EH?|EH?|EH   ?=  ,?ú?|,?ú?|,?ú?|,?ú?| USEB?|USEB?|USEB?|USEB?|  !"  α= ?-1EH?E?,Xs)[?-1EH?E?,Xs)[?-1EH?E?,Xs)[?-1EH?E?,Xs)[ #èèè èEH,XE@Eó EH,XE@EóEH,XE@EóEH,XE@Eó $%&èèè èí íí í ?-1,?ú2?E??o?-1,?ú2?E??o?-1,?ú2?E??o?-1,?ú2?E??o ' èèè è RE??o ' èèè è,?úEB,èX ,?úEB,èX èèè è ííí í ?-1USEB B üo?-1USEB B üo?-1USEB B üo?-1USEB B üo  èèè è _o?| _o?| _o?| _o?| α èUSEB8V ú,èX èèè èí íí í  ''  ?=  ?g? ?g ?g? ?g ?g? ?g ?g? ?g í í í í ( ê0 ( ê0 ( ê0 ( ê0?A-?"?EH4?,X ?ê??_?A-?"?EH4?,X ?ê??_?A-?"?EH4?,X ?ê??_?A-?"?EH4?,X ?ê??_ ? 9/9/9/9/?+G>5?/?"?·   ==  axaxaxax? ?=??"?í? ?=??"?í? ?=??"?í? ?=??"?í I?I?I?I???? ? (××× × ( 2 2 2 2?A-??A-??A-??A-?  ___ _ ééé é ?|EHV ò/è|EB Eg9s)[Eg9s)[Eg9s)[Eg9s)[ ùùù ù #èèè è ¢|EB¢|EB¢|EB¢|EB ??? ? ??? ? Eg?s)[ú?Eg?s)[ú?Eg?s)[ú?Eg?s)[ú? #èèè è   #èèè èEH,XE@Eó EH,XE@EóEH,XE@EóEH,XE@Eó ùùù ù $%&??? ?A?4?EH,XA-? ò? A?4?EH,XA-? ò?A?4?EH,XA-? ò?A?4?EH,XA-? ò?  ?g? ?g ?g? ?g ?g? ?g ?g? ?g í í í í ?·??·??·??·? êoJ-?,XAu1kêoJ-?,XAu1kêoJ-?,XAu1kêoJ-?,XAu1k ?==     ?===      ?==    ?g? ?g ?g? ?g ?g? ?g ?g? ?g í í í í A-?,XAu1kA-?,XAu1kA-?,XAu1kA-?,XAu1k  ??=?=   ??=??=     ?==   A-? òA-? òA-? òA-? ò K?Nl?K?Nl?K?Nl?K?Nl? VúEB aEBaEBaEBaEB f6èA-? òV)? ?/?×5B ?oè ü)ú?f6èA-? òV)? ?/?×5B ?oè ü)ú?f6èA-? òV)? ?/?×5B ?oè ü)ú?f6èA-? òV)? ?/?×5B ?oè ü)ú? ?= ccc c ??AG c ? × ? O? 8??AG c ? × ? O? 8??AG c ? × ? O? 8??AG c ? × ? O? 8  ± ± ± ± à′ ?à′ ?à′ ?à′ ? ??? ? ??? ?9U4§X,XU9U4§X,XU ??? ? ??? ?&?E:,XEBEH &?E:,XEBEH&?E:,XEBEH&?E:,XEBEH ?ê,X6 2??6 2??6 2??6 2???0*übT,Xêo V,èbEH? ?ê,X\??\??\??\???EH+,è4? ??4???EH+,è4? ??4???EH+,è4? ??4???EH+,è4? ??4??  ± ± ± ± ? ? ? ? 1? ?6,Xê? ¤a ? ¤a ? ¤a ? ¤a ? U,Xêo `Yo  ??+M-oG>5?/?"?·?U,Xêo `Yo  ??+M-oG>5?/?"?·?U,Xêo `Yo  ??+M-oG>5?/?"?·?U,Xêo `Yo  ??+M-oG>5?/?"?·?  ± ± ± ± ??X:??X:??X:??X: VpU,XttM6KY? 4? ?í/?EH èèè èí ?tt í ?tt M6,XM6,XM6,XM6,X EH4???4? ?í/?M6?'UTYêo 0*ü ü 4? ?í/?M6YêèU,XEH4?+!b4? ?í/?M6Y,X,è4? ?í/?M6YêèU,XEH4?+!b4? ?í/?M6Y,X,è4? ?í/?M6YêèU,XEH4?+!b4? ?í/?M6Y,X,è4? ?í/?M6YêèU,XEH4?+!b4? ?í/?M6Y,X,è 4? ??4??4? ??4??4? ??4??4? ??4??  ± ± ± ± )C?M-nU,XY/? )C?M-nU,XY/? )C?M-nU,XY/? )C?M-nU,XY/? ?ê\ ?ê\ ?ê\ ?ê\??? ? ??? ? ??? ? 1TU 1TU1TU1TU ??? ? ??? ? ê U ê Uê Uê U ??? ? ??? ? ?7?U ?7?U ? ¤a ?? ¤a ?? ¤a ?? ¤a ???? ? ?+M-oG>5?/?′"?<F?.BnU,XYêo `Yo??+M-oG>5?/?′"?<F?.BnU,XYêo `Yo??+M-oG>5?/?′"?<F?.BnU,XYêo `Yo??+M-oG>5?/?′"?<F?.BnU,XYêo `Yo? ? O? ?g? O? ?g? O? ?g? O? ?g "Yo,X?"?? l ? l ? l ? l ? Yo,XYo,XYo,XYo,XI?I?I?I??>o??>o??>o??>o? ××× ×  ???????? -?? -?? ( ××× ×  (  Yo,XYo,XYo,XYo,Xaxaxaxax??? ? * 2 * 2 * 2 * 2?íU!?YNNêJ\E@|C_?5ù!7è ?Bó??íU!?YNNêJ\E@|C_?5ù!7è ?Bó??íU!?YNNêJ\E@|C_?5ù!7è ?Bó??íU!?YNNêJ\E@|C_?5ù!7è ?Bó? X êX êX êX ê?SU!??ì5ù!7è ?Bó??SU!??ì5ù!7è ?Bó??SU!??ì5ù!7è ?Bó??SU!??ì5ù!7è ?Bó? Yo,XYo,XYo,XYo,X9/9/9/9/?+G>5?/?.Bn U,XU,XU,XU,X 2 2 2 2??? ? * 2 * 2 * 2 * 2  ` ` ` `X êX êX êX ê ? O? ?g? O? ?g? O? ?g? O? ?g _V" ò/ 1TU1TU1TU1TU  T,XYoèT,XYoèT,XYoèT,XYoè ?*ütM6"? ?*ütM6"? ??è ao!?ê ?!?úd?    ==   ?==  ___ _ ??7?UèìV ò/?"tM6 ??? ? T,XYo?T,XYo?T,XYo?T,XYo? =∑    =?+?=  =∑        ?=??????=  a a a a tM6èJ a ?!?-è0J ∑ =    =?+?=  =∑        ?=+??????= ?·??·??·??·?  a a a a tM6èJ a ?!?-è0J ? Oc ?goQ? Oc ?goQ? Oc ?goQ? Oc ?goQ? Oc ?g? Oc ?g? Oc ?g? Oc ?g í í í í * 2′ * 2′ * 2′ * 2′?>o"?UEH4?,X ?ê??_ >o"?UEH4?,X ?ê??_>o"?UEH4?,X ?ê??_>o"?UEH4?,X ?ê??_è G è Gè Gè G   ??? ? X ê′X ê′X ê′X ê′?-?"?UEH4?,X ?ê??_è G G G G ??? ? * 20 * 20 * 20 * 20?Y!¨_4? Y!¨_4?Y!¨_4?Y!¨_4?? ?? ?  ,X ò4??,X ò4??,X ò4??,X ò4?? X ê0X ê0X ê0X ê0?Y!¨_4??Y!¨_4??Y!¨_4??Y!¨_4?? ?? ? ,X ò4??,X ò4??,X ò4??,X ò4?? ? Oc ?goQ? Oc ?goQ? Oc ?goQ? Oc ?goQ? Oc ?g í? Oc ?g í? Oc ?g í? Oc ?g í v?Ga v?Ga v?Ga v?Ga??? ?  ?oúdè+? ?o òè+G>5?/?"{4z3o×  ú!???>o?/? `-??/?è?? ?G£ú!???>o?/? `-??/?è?? ?G£ú!???>o?/? `-??/?è?? ?G£ú!???>o?/? `-??/?è?? ?G£ ,X a,X a,X a,X a 8× è×8× è×8× è×8× è×   B>o?/?è" ?{ M6,X>oèY!¨_4?> B>o?/?è" ?{ M6,X>oèY!¨_4?> B>o?/?è" ?{ M6,X>oèY!¨_4?> B>o?/?è" ?{ M6,X>oèY!¨_4?> o òè!7>o+ üEH4?T?è òT?!7?Bó ?×o òè!7>o+ üEH4?T?è òT?!7?Bó ?×o òè!7>o+ üEH4?T?è òT?!7?Bó ?×o òè!7>o+ üEH4?T?è òT?!7?Bó ?×   B-??/?è" ?{ M6,X-?èY!¨_ üU ,X ??E?4?-? ò? G!7-?+ üEH4???? ___ _  A?4??A?4??A?4??A?4??1TU 1TU1TU1TU  ? ×9KEQ0*üê,X>o ò ` ? ×9KEQ0*üê,X>o ò ` ? ×9KEQ0*üê,X>o ò ` ? ×9KEQ0*üê,X>o ò ` -? ò? ò? ò? ò? ?·??·??·??·?  "{4z3o+í/?? +í/??    == ( )     <<?= ?= ( )       ≤≤?= ??=   =     = ??Yo?/???Yo?/???Yo?/???Yo?/? n&?4?Yo òèR???Yon&?4?Yo òèR???Yon&?4?Yo òèR???Yon&?4?Yo òèR???Yo ___ _  A?4??1TU ?L?o0*üê,X>o ò `-?A?4??1TU ?L?o0*üê,X>o ò `-?A?4??1TU ?L?o0*üê,X>o ò `-?A?4??1TU ?L?o0*üê,X>o ò `-? ò? ò? ò? ò? ?·??·??·??·? "{4z3o +G>5?/?"?    =    = ú!??Yo?/?ú!??Yo?/?ú!??Yo?/?ú!??Yo?/? ( )      <<== ( )       ≤≤== ( )      <<?=?= ( ) ( ) ( )       ≤≤?=?= n&?0 òè"??Yon&?0 òè"??Yon&?0 òè"??Yon&?0 òè"??Yo    => ííí í818181 81    = ___ _  A?4? ò/?7?U ? ×9KEQ0*üê,X>o òA?4? ò/?7?U ? ×9KEQ0*üê,X>o òA?4? ò/?7?U ? ×9KEQ0*üê,X>o òA?4? ò/?7?U ? ×9KEQ0*üê,X>o ò `-? ò? ?? ? ?·??·??·??·? _áL?"{4z3oè a?7?0?-è0JíB5è_áL?"{4z3oè a?7?0?-è0JíB5è ??Yo?/????Yo?/????Yo?/????Yo?/?? ( )   <≤?= ( )    <≤?=  B?/?n&?0 òè B?/?n&?0 òè B?/?n&?0 òè B?/?n&?0 òè + ò ???+ ò ???+ ò ???+ ò ???  =     = ___ _  A?4??1TU ?L?oJ0*üê,X>o òA?4??1TU ?L?oJ0*üê,X>o òA?4??1TU ?L?oJ0*üê,X>o òA?4??1TU ?L?oJ0*üê,X>o ò `-? ò? ò? ò? ò? ?·?+G>5?/?     == ∑ =  J>o?/? `-??/?ú?J>o?/? `-??/?ú?J>o?/? `-??/?ú?J>o?/? `-??/?ú? ( )    <<== ( ) ( )    ≤<? ? ?? ? ? ?=??= ???è-? ò?p,è4? ???è-? ò?p,è4? ???è-? ò?p,è4? ???è-? ò?p,è4? è èè è >o òh?"G4??  =