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

2???????

3??????

4???????

5???????

12?4?????,?????,???? ? ????? 12?4?,???,??? ????? ??? 12?4?,??????????,???????????????????????????? ????? ????? 12???4??(?)????????? ???????????? ???????????? 12???4?,??????????????(??????????????????)????? ? ??? ????:?????????????