Ola Clason’s Hardware store is an old company where most work is done “the old way”. Among other things, the company is the one and only provider of marble house numbers. These house numbers have become extremely popular among construction companies, especially the ones building luxury estates. This is of course great for Ola Clason, but also a small problem. Nisse, who has been managing the incoming orders has turned out to be a bottleneck in Ola’s business. Most orders are on the form “Coconut Drive 200, 202, 204, ..., 220”. This means every even number between 200 and 220. Nisse’s work is to transfer an order to a list of necessary digits and other symbols.
Your assignment is to write a program that automates Nisse’s work with orders containing only positive integer house numbers. Nisse will still in the future process all special orders (those including non digit symbols) by hand.