1?????+????+?????+???????
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?????飺??????
????????=???????
2?????????+??????+????????+?????
?????飺??3?
?????飺С????
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3?????????+?????+?????+???
?????飺??????
?????飺???
????????=?????
4?????????×2 + ??????×2
?????飺????????
?????飺????
????????=????
5?????????×2+?????×2
?????飺?????
?????飺???
????????=?????
6????????×2+???????×2
?????飺??????
?????飺ī??
????????=??ī??
7???????+???????+??????+?????
?????飺??3??
?????飺????
????????=????/????/??????
8?????????
?????飺?????
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????????=???
9?????????
??????:3???
??????:?????
????????=???
10????????????????????????????(???????????????)
?????飺???????
?????飺??????
????????=??3(????????3??????)
????+С????=????????
????+????=????????
????????????????????????????????????????40407???????40407????????
