?? ???:?????????? ??????????
????:1???app??:???????
2?????????????
3????????????
4??????????
5?????
??2???5??????????? (????????????????? ???)?5???
????????10%???????????????
?:??????????1????????17???????,????,???????????????????????????????????,??????
?,????????10%????????????????????????,????,??????????????????????????????,???????????????,????????,?????????????(??????????????????) ??????:???