13.(2023•润州区校级二模)已知函数f(x)=13x3+ex−e−x+1f(x)=\frac{1}{3}{x^3}+{e^x}-{e^{-x}}+1f(x)=31x3+ex−e−x+1,记等差数列{an}\{a_{n}\}{an}的前nnn项和为SnS_{n}Sn,若f(a3+2)=102f(a_{3}+2)=102f(a3+2)=102,f(a2021+2)=−100f(a_{2021}+2)=-100f(a2021+2)=−100,则S2023=(S_{2023}=(S2023=( )))