In the United States of America we count to 3. If I build them in 2 steps then it is not a group yet or a pattern and could have another possibility such as a platform coming up you can put markers and items on instead of more stairs, and most other people would have designed it from the back not sides by filling in the corner pieces, so I will have to figure out how to do triangle corner point stairs to make the half revolution stairs multiple people can stand on. So when Universe and calculator theory finally come out I can have someone to calculate with.