?? ??????????????????:??
????:1???????????:???????
2?????
3????????????
4???????????
5????????
?????????????????????2????????????????????????5????? (?????????? ???????????)???????????????????5???????
????????????????
?:????,????,?????????????????????????,??????????????????
????????,????????,??????????
???????????????50??,??,???,??,??????????50????,??????????,????????????,??????,?,??????????????,???,????????(??) ????:?????????