::
* ( )
4*/3* *
2*/1*
2*/1*
4*/1*
3*
2* * () *
4*/1*
4*/1*
2*
2*
* * *:
5* - 6*
* 1*
* 1*
- *(* 1
* (4* )
::
* *.
* * 5* *
*.
*
* 5* - 6* * *. * * * *. * * * *. *.
* * * *.
* *.
* * * 30* - 40* * *.
* * 1* *.
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