COMMENT ⊗   VALID 00005 PAGES
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\def\loe{\mathop{\char l\char o\char gz\limits@]SiGQx~∃9I∃M9YS5w9[CQQ←awqGQCD↓Y0∪∂FIβ&f≠#πIεk{x4Uc∪↔~g≠';nfkπS#␈βns∂FIβNd≠#πIεJs∂#∂⊃β;zfc'7''≠←'S≡Cx4*f#↔~s≡{OnsnS#?πZs∂#∂⊃β∞s≡CπIβ⎇c∂#π∩βOzsfK7'S≥;'S∂Gp4*s&+~s7∂Cns7∂##?C]c∂#π∩β6s∂FIβεf≠#πIπC{x4Uc∪↔~fk';nfkπS#␈βns∂FIβ6f≠#πIεJs∂#∂⊃β;{ph*s∪.2s↔cπZs7π&C?Cnf≠#πIε*s∂#∂⊃βbs≡CπIβπrs3'nKSO←O#∂#xhRs∪↔5c∂#?␈≠↔ns≡{7	!Op4*s&+~s3.3SO↔'Zs7π&C?C↔wZsnqgsx4*f#↔~s⊗K∨#S≡+SnsnS#∂f{O↔nbbs{{ph*s∪.2s∨∂'Zs7π&C?Cnf≠#πIε:s∂#∂⊃β∞s≡CπIβ'sx4*f#↔~sn{∪?C]arq2fkπS#⊗K;ns≡CπIβmc∂#π∩β>s∂FIβCuarq3ph*s∪.2s7?"→Gnsε+;π3'IBqmEc∂#π∩β6s∂FIβ>f≠#πIε"q2qb→E'xhRs∪↔5c↔G[]c7πSG∪↔2s≡CπI≥#⊃EβxhRs∪↔5c;↔G7Zs7π&CK↔3]c;?Rf+G[{ph(4*f#↔~sf#?SO←Y:puu`u;{ph*s∪.2s∂∪␈#Oonf≠#πI;!AFpmc∂#π∩9QAFajs∂#∂⊃≥QA∂sx4*f#↔~sf#?SO∨[m:pjrpu:ak{x4Uc∪↔~f≠∪?S∨≠ns∂&{SNpop4*s&+~s[&{SOng3?c]cπO.c';↔≡['A↓'βRs[≡['A↓7βRs#⊗{cm;uc#?GY;zsF∪?cmws{x4Uc∪↔~fc∪?S≡konpjrpu:ai:pwwp4(4Uc∪↔~f+Gπ3N;9
G]c[∂↔w#↔KnfCπ3'>sns#6K31∩f#'OC∨#g3↔Z→∂y⊂2"s∪'∨βOSgf+ns;.c1
∂r"s#≠Nc04*f≠I
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∂Zs[␈CnsS∞∪O/'α↓CCQπβ3WMβ	AACπ!β7'w+M↓Eβ↓CCPhQ↓↓αfCπ3'>qβS=π≠'k↔]c#≠'fa∩s∪O≠COSNc↔m
∨q∩sS∞∪O/'α↓CCPhQ↓↓2"s∪'∨βOSgf+ns;.c1
∂r"s#≠Nc2sS∞∪O/'α↓AβC"βC3W~↓EAAπβQβ7NsWM↓↓ACC h)↓↓↓2s#≠Nc1⊃↓~→∩sS∞∪O/'α↓CCRf≠I
Gwsx4*f#↔~s∨β'3∃≠ns[≡+;S↔↔Zs#πfK∨;nfC≠'3b!

↓%c#≠'fbs∂I≠{{xhRs∪↔5c3C'f)
Gng3∂↔;&+KnsF3'∨wY⊃

α"s#≠Nc2s∂∩→G{{ph*s∪.2sKCNc∃
G]c[∂↔w#↔KnfCπ3'>sns#6K31⊃~→↓∩s∨⊃
G{wp4*s&+~s;.c3nsF∪?cowp4*s&+~sS>{3';*→E
I≠≠ns#∞c'∨;]c#?BβS=β≡Kk↔m~≠zs∂∃cGWπ""s∪'∨βOSgf+m
Gr"s#≠Nc2s∂⊂h*s;}3'∨wZsC↔v3Seβ	AABg3O/'α→KzsF3'31%c∪'Oπ≠Sg3/Y
Oy%cGWπ%c∂K{ph(4*f#↔~s≡C?Aβ&y
GC"→KnsF∪?cnfc?←↔∩→GCRfsW32g3?c]c#?GZs3?>+IEAπβRs#⊗{cns⊗'O∃↓CCPhRs#␈Cm∩s&KOCO'K3↔m≠∪y∪{wrs[O↑KA5EββCS{wq↓∃βπ∪↔S↔v#MβSFQ↓
∩β'M↓≠	β∪↔/4*s&+~sOε{O∃
∂Zs#␈AβS=ββCSm≠
s#O∨sx4(2s≠}sQα↓n≠7πSGAαs≠}sQβ¬n≠7IEααs≠?w!β	w≡kIeαf3?;Qε→w∂7∪@4*s6{;Qβ#k∂7I:↓↓αs6{;Qβ+k∂7I2↓αs≠}sQβ→n≠7IU¬c≠?;"β≥w∂nIE@4Uc≠?;"β!w∂nIe↓↓¬c≠?;"β%w∂nIa↓αf3?;QεQw∂7K9αs≠}sQβ-n≠7%XhRs≠?w!β1w≡k%U↓ααs≠?w!β5w≡kO
Eααs≠?w!β9w≡kMEA¬c≠?;"β=w∂o→d4*f3?;Qπ↓w∂7≠A↓αs6{;Qβk∂7	↓αs≠}sQβIn≠7	e¬c≠?;"βMw∂o#Q`4Uc≠?;"βQw∂o#Q↓↓¬c≠?;"βUw∂o≠eEA¬c≠?;"βYw∂o≠eeαf3?;Qπ9w∂7∨I`4*f3?;QπAw∂7∨I]↓αf3?;QπIw∂7∨IYαs6{;QβSk∂7OK)αs≠}sQ↓mn≠7S'&`4*s6{;Q↓ck∂7O≡⊃↓αs6{;Q↓kk∂7U↓αs≠}sQ↓yn≠7SQJαs≠?w!↓⎇w≡kS%Eh*s≠}sQα¬n≠7OO≠Aαs≠}sQα	n≠7OM@h*s≠}sQα
oβ7';≡Bo7→g≠gNthRs≠?w!α⊃wεk'≡↑k→3OO~t4*f3?;Q∧)w∂7∪@4(4Uc#O'V)↓Igε→↓αs7≠'k∃β!SC
ααs7πF#↔CSB↓KCQααsCπ⊗K;∪↔w!↓OC_h*sC∂∪O/'α↓CCQπβ3WMβ	βCQααs3'v+O/'α↓GCPhRsS?π≠/'Aβ⊃SCQπβ3WMβ3CQβnK;WMβ	CCQααs?'≠/'Aβ	WCQπβ3WMβ≠CQβnK;WMβKCP4Uc∪'Oπ≠/'Aβ3CQβεcWM↓∨βQβ7NsWM↓∂βP4*f#'OC∂≠/'AββCQβεcWM↓∨βQαs&KOC≡['A↓'βQβCg+M↓Oπ 4*s&+~sS.sC?'w#ns∂≠↔3'v+O/'α↓EKC h(&s&+~sKoZqkπrαs∪↔5cO3ncS;yαf#↔~s⊗3nqk∂qαs∪.2s'S]ai␈y¬c∪↔~g#SnqW#x4(Mc∪↔~f∪'∨3πZs7π&C?C↔wZs[∂.sS↔K]c#?GZqjαf≠#πI;β{{{ph(&s&+~sN;KCnfkπS#≡c?O↔]c[∂↔w#↔KnfC?c]ajαs≡CπI≥∂s{{xhP&s7∂##K5ε∪→αfkπS#O!β∨+bαs7π&COeβ/Ciαs⊗kx4*f#↔~svK;↔C}K;Snf∪πO↔fK;↔O↑KA↓E∂βP4(Mc∪↔~g∪7nqV∪yαs&+~sOgZqk?rαs∪↔5c≠ncSKyαf#↔~sO#nqkGqαs∪.2sSS]ai{xhP&s∪.2s'>cCnsnS#?ε+;nsF∪?cncS¬#{wp4(&f#↔~s⊗K∨KC]c7πSF≠3?O/Zs#␈Cnqk
K{{xhP&s7∂##K5ε∪↔→αfkπS#O!β#/bαs7π&COeβ7Kiαs⊗kx4*f#↔~s.K∨#Sε{';S]cπO.c';↔≡['A↓OβP4(Mc∪↔~g∪7nqV≠yαs&+~sOgZqkCrαs∪↔5c≠nf+KK?↔qαs∪.2s'S]ak'y¬c∪↔~g#SnqW≠x4(Mc∪↔~f∪'∨3πZs7π&C?C↔wZs#␈Cnqk
C{{xhP&s∪.2s'?∪CnsnS#∂f{O↔nfC?c]ak¬'wsx4(Mc7πSG∪5β∂.1αs7∂##'QεK/1αfkπS#∨Iβ←gRαsK7ph*s7∂##↔a∧4*s&+~sN;∨3C]c7πSF{C↔;]c[∂↔w#↔KnfC?c]ajαs≡CπI≥∪∪{{{ph*s∪.2s'>;KCnfkπS#≡c?O↔]c[∂↔w#↔KnfC?c]ajαs≡CπI≥∪≠{{{ph*s∪.2s'>;∨3C]c7πSF{C↔;]c[∂↔w#↔KnfC?c]ajαs≡CπI≥#β{{{ph*s∪.2s'>;∨KC]c7πSF≠3?O/Zs[∂.sS↔K]c#?GZqjαf≠#πI;!G{{wp4(4Uc∪↔~gGWπ'ZsGW∞"sGW∞#x4*f#↔~qOZs#O↑KA↓9.+7x4Uc∪↔~gCO/'πZs#O↑KA↓←¬!βC3/→↓OC"β7';/→↓SC'p4*s&+~sg≡['Cngβ↔;πg#e5U¬c[O/O↓↓OC"βC3W~↓OCQεk';W~↓GCSph*s∪.2sgg≡['Cngβ↔;πg#e5Eβαs[O↑KA↓[π!βC3/→↓[C"β7';/→↓KC'p4*s&+~sO.≠S'?w≠/'C]cC↔;∞cSe5∪↓Bs[≡['A↓∪#CQβεcWM↓∪CQβnK;WMβ3CSxhP4*s&+~sS/CS';&+;Q
∂Zs;?Ns∪↔;%c#?BβS=↓∨β∂nsG≠M
FcKzqπph*s∪.2s#πv;ns#∞s∨';&+;Q↓∨β∂x4Uc∪↔~f#'OCfe
E'Zs#␈AβS=β⊃OC∂Z"s∪'∨βOSgf+m
Gr"s#O∨q∪x4Uc∪↔~f#'OCfg?GZs#␈AβS=β⊃OC∂ph(Xdef\tpage{F}\def\rhead{} Ldef\chead{}	% "glkbal variables"	
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