diff -r 62389faa66e4 -r cd6b9fe4bce5 cws/cw04.tex
--- a/cws/cw04.tex	Wed Feb 01 13:54:55 2017 +0000
+++ b/cws/cw04.tex	Thu Feb 02 13:18:02 2017 +0000
@@ -141,7 +141,7 @@
   number (for example $MMM$ is OK); non-repeatable digits cannot be
   repeated at all (for example $VV$ is excluded).
   
-\item If a smaller digits precedes a bigger digit, then $I$ can precede $V$ and $C$; $X$ can preced
+\item If a smaller digits precedes a bigger digit, then $I$ can precede $V$ and $X$; $X$ can preced
   $L$ and $C$; and $C$ can preced $D$ and $M$. No other combination is permitted in this case.
 
 \item If a smaller digit precedes a bigger digit (for example $IV$), then the smaller number