20 ! 2 . !!!
. . . ? .
1. . !
* .........................................600 .
* ...............................................................2 .
* ..............................................................100 .
* ................................................................4 ..
* ..........................................................2 ..
* ...........................................................2 .
* ............................................................800 .
* ...........................................80 .
2. «» !
1
400
180
1
200
100
3
!
