Foundation item:Supported by SFC(11071194),Scientific Research Program Funded by ShaanxiProvincial Education Department (Program No2010JK538) Shaanxi Provincial Natural Foundation(2010JM1009), Key help subjects of Shaanxi ProvincialFoundation. State Key Laboratory of InformationSecurity (Institute of Software, Chinese Academy ofSciences100190).The main purpose of this paper is to study the newequation by using the new methods, and solved it thoroughly. Itseems that no one had studied it yet, at least we have notseen such a paper before.
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