Okay, please share your wisdom, tell me how would they express "1,000,000,000 - 100" using Latin numerals? Oh, I found the answer on my own, with the help of L

Okay, please share your wisdom, tell me how would they express "1,000,000,000 - 100" using Latin numerals? Oh, I found the answer on my own, with the help of LLM. For a billion you can use M̅M̅, which technically would mean a thousand thousand thousands, and to denote the calculation above you'd write - M̅M̅CM. But my point still remains relevant - this is the modern extended version of Roman numerals. In ancient Rome they typically never would go up to a billion.