Given a sequence of numbers, classify it as either increasing, decreasing, or constant.
2, 4, 4, 4, 2
The sequence is neither increasing, decreasing, or constant. It's non-decreasing and then decreasing from 4 to 2.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Given a sequence of numbers, classify it as either increasing, decreasing, or constant.

### Response:
The sequence is neither increasing, decreasing, or constant. It's non-decreasing and then decreasing from 4 to 2.