? C?O??C? ?I ????C ?C?E C???? ?C???E C?E? C?E??E ????? E???C ?C?E OI?IE ?I??E ???? ?C ?C??C ????? ??? O??? ??C ?? ????C E??CE??? ??C??C ????? ???C??? ??I???C ?? ?????? ??? C???? ?E??I ???E?C? ??C??C ?? ?C?E C???CE ????? (1) .
??I E?? C??C? EC?IC?? C???C?? EC?I?? C?C ?EC?? E??? C???? ??? ?E? ?? ??? ??? ?C ??? ??? ?????C ?? ??? ?I?? ?????? ?????C EC?C?EUCEE ???E C???? ?E??C ???? ????E? ??? ????? C?E???? ??? ????? ????? ??? ?????? EC?E ?? ?E? ??I?C? E?? E??? ??? ???? ?? C???EE ?? ?? ????? ?C??C?E E? ???E C????? C??? ??? ??? C???CE C?EC?? ??? E? ??? ???E ??? ?? ???E? I??? ????? ?? C???E? ??C? ????? E??E C???? ??? ?? ??? ?? ??E?? E?I ?? I?? C????? ??? ??CE? ?C? ???? ?? ?? ?C?? AI?? ??? ??E?E ????? ??? ???? ??? ?C ??CI? ?C? C??C?E C?????:
(1) O?? C???E ?? C???? C??C???: 193.