?????1-10??
????????e???
????????10???????????2???????С??1С???
????10-20??
????????????????e???
????????10???????????10???????4С???
????20-30??
????????e???
????????30???????30???????15С???
?????30-60??
??й?e????????????????μ????????????????????????????????????
????????50???????50????????50С???
????60??????
??????????????μ???????????????????????????????????????
??????????????????