macOS Need help on writing little app that draws red filled circles on papers.

Hello,

for my little son I need to create 100 printed out pages with 1 to 100 red filled circles. I know that this is totally easy to write as an app if you know how. Unfortunately I don't know how.

What I could do is just draw those in Pixelmator and print from there. But 100 seems a lot for me to do by hand and I don't like to do it the dumb way. I like smarter ways of working 🙂

I guess it would look something like this

For Y=1 to 100
For X=1 to Y
create new page
draw circle(red, random, random)
Next x,y


What would you suggest would be a good tool (XCode ?) and can I print on papers there ? Or Automator ?

Thanks for your support.
Cheers
LaForge