Got it! Are you trying to solve a specific problem involving the digits $a$, $b$, and $c$? For example, do you need their sum, product, or their relationship in an equation? Let me know how you’d like to delve into this.

Here are five questions to expand on this:

1. Are $a$, $b$, and $c$ part of a number, such as $abc$ or $a + b + c$?
2. Should these digits satisfy any specific equation or inequality?
3. Are $a$, $b$, and $c$ consecutive or distinct?
4. Do you need to calculate something specific, like permutations or combinations of these digits?
5. Are there any specific conditions for their use, such as a mathematical property they must satisfy?

Tip: Always define constraints or equations clearly for digit-based problems to avoid confusion and streamline the solution process.