\documentclass[12pt]{book}
\usepackage[latin1]{inputenc}

\usepackage[frenchb]{babel}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsfonts}

\usepackage[body={5in,9in}]{geometry}
\pagestyle{empty}

\begin{document}

\input{mysolution.tex}

\end{document}
