- 2


R9 (75 ), 1. ­ ( 25 ) R8C22. , ­ , . 1 ­ .

­ 2. wl, , . w2 ­, ­ . 1 2 , . ­:

220 ,

................ 100

, . 27 5

10 , 31

= . . . . 85%

, ........ 25 30

. 2.