??? ??? ?? ??????? ?? ????????, ???? ????????? ???? ????-?????????? ?????? ??? ?? ???????? ???? ???????? ??? ????? ?? ???????? ??????????????? ???? ??? ???????? ??? ??? ?? ?????????.copyright marketplaces usually do not promise that an Trader is finishing a purchase or trade for the ideal price. Therefore, as of 2020 it was attainable to arbitrage