--- a/cws/cw05.tex	Tue Dec 18 23:31:45 2018 +0000
+++ b/cws/cw05.tex	Wed Jan 02 21:12:32 2019 +0000
@@ -1,3 +1,4 @@
+% !TEX program = xelatex
 \documentclass{article}
 \usepackage{../style}
 \usepackage{../langs}