\documentclass[paper=a5,twoside,DIV=20,headinclude,footinclude,10pt]{scrartcl}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}

\usepackage{amsmath}
\addtokomafont{disposition}{\rmfamily}

\newcommand{\nname}{}
\newcommand{\naffiliation}{}
\newcommand{\ntitle}{}
\newcommand{\nabstract}{}

\newcommand{\printabstract}{%
    \begin{center}
        {\Large\textbf{\ntitle}}\\[.7\baselineskip]
        {\Large \nname}\\[.1\baselineskip]
        {\naffiliation}
    \end{center}
    \nabstract
    }

\begin{document}
    \input{yourlastname}
    \printabstract
\end{document}