???????????????????

?????????????????? ??????????????? ????????? ??????

??????????????????????????????????????????????????У???????????????????????????????????????????????????????????????????ɡ???????????150????

????????????

20-21(???1??);

30-31(???1??)??40-41(???2??)??50-51(???3??) ;

60-61(???1??)??70-71(???2??)??80-81(???3??)??90-91(???4??);

100-101(???1??)??110-111(???2??)??120-121(???3??)?? 130-131(???4??)??140-141(???5??)??????н????????????????????????????

???????????????????????????????????(??????????)????(???????????)??????(???????????) ??????(???????????) ??????(???????????)

?????????1-5????????????????????????????????????????????????????????????????????????????????????1????????

???????????????????????????????????????????????????????????!(?????????????????????????10???)??