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

2?????????????

3?????????

4??????????

5?????

???????????????2??5?????????? (? ????????)??????????5????

?????????

?????????????????:????,?????,???????????????,???????????

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

????????????????????????50???????????????????,??????????,?????????,???,???????????50??,????????,???????????????,????????????,??,??????,???????????,????????(?????????????????????) ?????:??