Yup, we did the same, I wrote my first program 50 years ago this year, on perforated punch cards, they cost 1c each (in NZ), that paid for processing, we would

Yup, we did the same, I wrote my first program 50 years ago this year, on perforated punch cards, they cost 1c each (in NZ), that paid for processing, we would share and reuse cards exactly like this