Here's a little program I wrote to play with the working standard template library in egcs. It takes a phone number and outputs all the possible word mnemonics from a set of dictionaries. You'll never forget a PIN number again. Search for satanic messages in celebreites SSNs. Fun for the whole family.
Here's the source as a gzipped tar file. It comes with gnu configure, so untar, configure and make to install.
Mail me with comments or questions.