# ทดสอบ Markdown
## Heading 2
### Heading 3
#### Heading 4
This text can be *italic* and **bold**.
- Unordered list 1
- Unordered list 2
1. Ordered list 1
2. Ordered list 2
> Quote
You can write `code` and $math$.
Link to [https://google.com](Google)
```c
int main() {
printf("Code block\n");
}
```
$$$
\int_0^\infty e^{x}dx
$$$
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