?????? ????!? ???? ???? ????????? ?????? C2-C3, C3-C4, C5-C6, C6-C7.??? ?? 2 ??, ??????? .?????????? ??????? ???? ??? ???????, ??????? ????? ???? ??????????? ?? ?????????. ?????? ???????? ????.???????? ????????? ??? ?????????? .??? ????????? .?? ?????? ???????
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