????:1???????:??????????

2??????????

3??????

4???????????

5??????????

??????????????????????,??,????,??,????????????,????????

???15???,???????3????,??,?????????????????,3?????????????????,3????????????,??????????????????,???????????,???????????????????????,?????3???????????????

???????????,?????????,????,????,???,??????????????????;????????????,????,???????????????????,?????????????(???????? ???????? ???????? ???? ??? ?????? ???)

????:??????????????