????:1????????:????

2??????

3?????????

4????????

5????????100??

2?????21???,?(?)?????????????????? ????? ? 2?21?,??????? ??????????????? ? 2???21?,??(?????)????? ? ? 2?21??????????,??? ? ? 2?21???????,??????? ?????????? ??? 2?????21?????,????????? ??? ?????????????????????? 2???21?????????????,?(???????????)??? ? ? 2?????21?????,???????????????? ? ? ??:??