From the given set of input-output pairs, it appears that the function behaves differently in two intervals:
1. For x <= -64: The function output seems to increase as the input approaches -128 but then steadily decreases as the input approaches -64.
2. For -64 < x <= 64: The function output decreases as the input increases, reaching a minimum around x = 0, and then starts increasing as the input approaches 64.

