A mathematics professor Mr. Cuba has two cubes on his table. Cuba arranges these two cubes daily to show the
current day of the month. Which 6 numbers do you think will be on the sides of either of these cubes to make
this happen? What steps shall he take daily? You can't represent the day 9 with only one cube. You have to use
both cubes all the time. So the 9th day would be "09", and 15th day would be "15"