??????幥???????????????????????????????·Ь?????15??????????????????+30+12??+10??????10??

?????·????Ь?????10?????

??????幥????????????????????Ь??????????·Ь?????15??????????????????+10+5+30?+3??

??????·?????10?????

??????幥???????????????c?????????幥?????????????θ?????????

?????c???????????????????

??c?????????????????????????????????????????????????￡??????????????????????????????????????????蹷?????????????????????????????滻??????c???????15????????????????

??????????蹷?磬?????????15?????????μ??????????

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