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