Find the value of $$\left\textbackslash{ \frac{2018+1}{5} \right\textbackslash} + \left\textbackslash{ \frac{2018+2}{5} \right\textbackslash} + \cdots \cdots + \left\textbackslash{ \frac{2018+2017}{5} \right\textbackslash} + \left\textbackslash{ \frac{2018+2018}{5} \right\textbackslash}$$. 
选项为:A:$$1$$  B:$$751$$  C:$$810$$  D:$$1009$$  E:None of the above  请回答其中一个选项.