diff --git a/tex/homework.cls b/tex/homework.cls
index a404dbb..082d0b5 100644
--- a/tex/homework.cls
+++ b/tex/homework.cls
@@ -108,3 +108,18 @@
         \end{tikzpicture}
     \end{flushright}
 }
+
+
+\newcommand{\exercise}[2][]{%
+    \def\@exercise{#2}%
+    \subsection*{Exercise #2. #1}
+}
+
+\newcommand{\subexercise}[2][]{%
+    \subsubsection*{Exercise \@exercise.#2. #1}
+}
+
+\newcommand{\sect}[1]{
+    \def\@section{#1}
+    \section*{#1}
+}