20???100 ???? ????? ??! ??????? -20 ??? 100 ???? ???? ??? ?? ?????????????? ????? ??? chance ??? ????????? ??? ??? ?????????? ??? ????????? ?????? ????? user-friendly ???????? ????????????! 20 ??? ????? 100 ??? ??????? ?????????? ??????? ???????? ????? ????????? ????? ????? ?????? ???????? 20 ??? 100 : ????