?????? ?? ????????? ????????????? ?? ?? ???, ??? ?? ???, ?????? ?????????? ????? ???, ??????, ??, ??????????? ??????????????????.???? ??????? ?? ??????? ????? ???????????, ????? ????? ????????? ?????? ???????? ??????? ??????? ????????????????????????? ??????????, ??? ?????????????, ?????????? ?????? ??? ??????????????????????Equalizing cost is the