--- a/hws/hw06.tex	Mon Oct 19 23:49:25 2015 +0100
+++ b/hws/hw06.tex	Tue Oct 20 00:01:56 2015 +0100
@@ -6,6 +6,8 @@
 
 \section*{Homework 6}
 
+\HEADER
+
 \begin{enumerate}
 \item (i) Give the regular expressions for lexing a language
 consisting of whitespaces, identifiers (some letters followed by digits), numbers,