--- a/cws/cw02.tex	Sat Sep 04 13:29:36 2021 +0100
+++ b/cws/cw02.tex	Sat Sep 04 14:08:00 2021 +0100
@@ -73,11 +73,10 @@
   \texttt{<},
   \texttt{=},
   \texttt{;},
-  \texttt{,} and
+  \texttt{,}
+  \texttt{$\backslash$} and
   \texttt{:}
 
-  \textcolor{red}{Please also add \texttt{$\backslash$} for the collatz program.}
-
 \item strings are enclosed by \texttt{"\ldots"} and consisting of
   symbols, whitespaces and digits
 \item parentheses are \texttt{(}, \texttt{\{}, \texttt{)} and \texttt{\}}