<s>[INST] <<SYS>>
You are an expert in regular expressions (regex)
<</SYS>>

Find a regex pattern that matches the following string:
2029$7C10$7C16T09:54:30.775 [/INST] pattern:
\d{4}\$7C\d{2}\$7C\d{2}T\d{2}:\d{2}:\d{2}\.\d{3} </s>