??????:

�

3 ????? ??? ?????????
??? ??? ??????
� ??? ??? ???
� ??? ??? ????? ???? (?? � ??? ????)
3 ???? ???
??? ????? ???? ??? ????

�

???? ?????:

1. ??????? ?? ?? ???????? ????? ???? ???????.
2. ??????? ?????? ?????? ???????? ?????.
3. ?????? ??.