# Solve Five Core Python Data-Processing Exercises Implement and explain: repeat a message `n` times with blank lines; square a list then reverse it; FizzBuzz; count case-sensitive words; and return the second-largest unique integer or `None`. ### Constraints & Assumptions - Inputs fit memory and words are whitespace-delimited. - Functions return values except the explicitly printed exercises. ### Clarifying Questions to Ask - What should negative `n` do? - Must input lists remain unchanged? ### What a Strong Answer Covers - Correct boundary behavior, idiomatic iteration, uniqueness, and complexity. ### Follow-up Questions - How would each be tested? - Which operations can stream?