Construct a regular expression to match the following pattern
Any word that starts with 'c' and ends with 'h'
The regular expression to match any word that starts with 'c' and ends with 'h' is: 

```
\b[cC]\w*[hH]\b
```

Explanation:
- `\b` marks a word boundary
- `[cC]` matches a letter `c` or `C` (case insensitive)
- `\w*` matches any number of word characters (letters, digits, or underscores)
- `[hH]` matches a letter `h` or `H` (case insensitive)
- `\b` marks the end of the word boundary
Complete the following task based on the instruction and optional input provided.### Instruction:
Construct a regular expression to match the following pattern

### Input:
Any word that starts with 'c' and ends with 'h'

### Output:
The regular expression to match any word that starts with 'c' and ends with 'h' is: 

```
\b[cC]\w*[hH]\b
```

Explanation:
- `\b` marks a word boundary
- `[cC]` matches a letter `c` or `C` (case insensitive)
- `\w*` matches any number of word characters (letters, digits, or underscores)
- `[hH]` matches a letter `h` or `H` (case insensitive)
- `\b` marks the end of the word boundary