Mapping out letters

Any advice on how to map out the letters M A X (stocking) using different colours for the letters than the rest of the scarf. i can’t quite figure this one out.

http://www.knittingpatterncentral.com/directory/charts.php

Here are several charts for letters.

http://www.berroco.com/exclusives/john/john.html

This site has an alphabet chart. The font is basic and uppercase. Very easy to knit into any pattern and classy. I made the stocking and the letters were great.