?? ????????????? ??????????????
????:1??????????:????
2??????????
3?????
4?????????????
5?????
???1???????????????????????8? (????????????? ??????????????????)????????????????8??,?7?,?????????????????????
1?7??????????????21?????????45?????,??????????????,??????6??????,????????????????????????2??????1????????????8??????????2??????,??45??????????????????????????????????,??????
???????????,??,??,?????????????????,??????
???,?,??????(?????????????????) ???????:??