??????? ????????? ???????? ?????? ?????? ??????? ??? ??????? ?? ???? ????????? ???????? ???????? ?? ??? ??????? ????? ?????? ????? ?????? ?? ???????? ????? ??? ???? ????? ?????? ??? ?????. Guideline the coed in direction of making use of a systematic structure solution for problem identification, solving to obtain the essential style.????? ????? ?