Given the steps for making a cake, classify them according to their order.
Mix the ingredients, preheat the oven, bake, cool
1. Preheat the oven
2. Mix the ingredients
3. Bake
4. Cool
Complete the following task based on the instruction and optional input provided.### Instruction:
Given the steps for making a cake, classify them according to their order.

### Input:
Mix the ingredients, preheat the oven, bake, cool

### Output:
1. Preheat the oven
2. Mix the ingredients
3. Bake
4. Cool