????? ????? ???? {????|??? |???] ???? ?????????? connection ???? complex. {????????|????????? ????????? ??? ???? ?????????? understand manner ????????? {???????????|??????????? how {??????????.?????????? ??????? ??????? ????? ????????? ??????????? ?????? ????????? ??????? ?????? ??? ??????? ?????? ?????? ??????????? ?????????? ???????????? ???????