?? ??????????
????:1????????:?????
2????????
3???????
4?????
5???????
?????????????????????,??????????????,????????????,????????,????,???
????????????15????,???3????,?????????,???????????????????????????,3????????????????,3????,?????????????,????,?????????????????????????????????????,????????????3?????????????
??????????????,???,????????????,????,????,???;??????????????,????,???????,???(??? ??????????? ???? ??????? ???? ??????? ???)
?????:??????????