Dozenal Calculations

Hi there!
I'm a math student at Saint Francis Xavier College in Australia and have been absolutely obsessed with base 12 and have in fact converted to counting solely in this form. If you would be able to provide me a copy with one of these dozenal calculators I would greatly appreciate it. Also if possible, a pastebin of the code behind a base 12 calculator would be immensely appreciated and would help further my understanding behind its functions. I have been trying to figure out how to make one of my own for months now. Kindest regards, Shannon

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