To help you get started with the creation of a good competition, you can modify the following template:
````markdown
# Goal
This is a competition to… Input will be… Output must be…
The mapping from input to output consists of…
$$
f(x)=\sum_{i=1}^{N}\begin{cases}\text{MathJax}=\text{good}\\4\text{ formulas}\end{cases}
$$
Be aware of the $\text{inline}\over\text{formula}$ corner cases…

The goal of this competition is to achieve the shortest/fastest/… code.
[make sure to select the correct post type!]

## Special rules
- Your function must…
- Your function may not…
- Scoring consists of…

## Example cases
Here are a few test cases that cover both simple cases and any edge cases:
[JSON is often a good format to provide data in]

| Input                 | Output                 | Notes  |
|-----------------------|------------------------|--------|
| `["example","input"]` | `["example","output"]` |        |
| `["example"]`         | `["example"]`          | Single |
| `[]`                  | `[]`                   | Empty  |
````
It will look like this:
> # Goal  
> This is a competition to… Input will be… Output must be…  
> The mapping from input to output consists of…  
> $$  
> f(x)=\sum_{i=1}^{N}\begin{cases}\text{MathJax}=\text{good}\\4\text{ formulas}\end{cases}  
> $$  
> Be aware of the $\text{inline}\over\text{formula}$ corner cases…  
>   
> The goal of this competition is to achieve the shortest/fastest/… code.  
> [make sure to select the correct post type!]  
>   
> ## Special rules  
> - Your function must…  
> - Your function may not…  
> - Scoring consists of…  
>   
> ## Example cases  
> Here are a few test cases that cover both simple cases and any edge cases:  
> [JSON is often a good format to provide data in]  
>   
> | Input                 | Output                 | Notes  |  
> |-----------------------|------------------------|--------|  
> | `["example","input"]` | `["example","output"]` |        |  
> | `["example"]`         | `["example"]`          | Single |  
> | `[]`                  | `[]`                   | Empty  |