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

2?????

3??????

4?????vx

5?????

2?????12?,??????,????,???????6??????,??????30???????? ?????? ?????? 2???12?,?,????,???6???,??????????30???????????? ?? ? 2?????12?????,?,?,???????????????6???,?????30??????????????? ?????? ???? 2????12?,?????,????,??????6??,?????30?????????? ??? ???? 2?12?,??????????,????,???????6??????,????30?????????? ???? ??? 2?12????,??????,??????,??????????6??????,??????????30?????? ? ?????????? ????:?????