\documentclass[a4paper, 10pt]{article}
\usepackage{myXsim}

\author{Benjamin Bertrand}
\title{Équation differentielle - Cours}
\date{février 2021}

\DeclareExerciseCollection{banque}
\xsimsetup{
    step=3,
}

\begin{document}
\setcounter{exercise}{3}

\input{exercises.tex}
\printcollection{banque}
\vfill
\printcollection{banque}
\vfill
\printcollection{banque}
\vfill
\printcollection{banque}
\vfill
\printcollection{banque}
\vfill
\printcollection{banque}
\vfill

\end{document}
