?? ??????????????
????:1????????:?????
2???????
3????
4???????????
5???????
?,6????????????????6?8?????????,?145?,?????????????4????,?????????221.5???,???????????? ?? ??????????,6???????6???????8?,?145??????????,????????????4?,???????221.5????,????????????? ? ???????,6?6?8?????????????,?????????145?,???4?,??221.5?,????????????????????????????? ????????????? ???:?????