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12. ^11471= ++=tr|. eD TlAl= zl+ sl d^l7l tr^l 4zl tslEg E el 7lA1= 4 zl rl 7Jtr+ (+) ,4 4 zl= ql"l4l *il 4 zl "Jql 9l= ol5 ag ,A*o) BoI{+. (:z? 17 +z) ('I) =els+,Hl4zl zl A+qq gltrJ *E"l oJ aE trl =J44 9lo o-E =el gel "Jz= zl*ol *oldtr}. (+) =el 9l E ol$ag ,A*"1 Ho}.d+. 13. r+== ++=tr|. ?D aalql ^14+= +B6l E6la i*E E g E6i qI4 g z|,rl E_ ,J Al= +=tr}. (+) g "lE,rlzl s.rl =l+tr- +=+. 1A o[=-9. Elt-rL l-. t=o= 'I'It--l . ?D TlAl= ul$rlTlE^l ,JAloil ^fl4+e+ A* E gg E6l SE dil= +=trI. (+) "J5ql Eqgl= Ezl, +ol7l+, r+o+ F g EE *oI ala 6Ia ^l4 +s +e +s "IE zJetl=. 41ao1 *olt4. (:B 18 +=) 15. =g= =e1= ^114:Lltrl. ?r) +"JE =zl= [-zB 19]+ Aol =q'llq ril 4 zl 4l +=+. (+) ^il4+= +q EBlel "Jzzl gtqa 4rl xl Boldtrl e) zl#21 7I gLqa 4rl^l EE 4_r. Ezlz 414 ++. (4) d +g 4 EJ6Jol 'J+SE _ "J q E+ 4 o -e +Eq =4. eI) rlF EqE olgag d+ ^il4414 *z 4 uJ sl ry\*"\ Bolt+. ol +g e HIE^I 7)A)= Czl rl 7la 4zl tslEg *= +EI ql^l Etlot ++. (:zB z0 +z) 16. EJ= Eltrl. 17. 8al trEEltrl. reJ fi ^11471 ++71 ral 18 g= ++71 reJ 1e +g= =al =qLH7l :.aJ 20 c= =al ++71 ;.aJ 16 Ba,q;471 ,J7l -64-