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

Find a regex pattern that matches the following string:
1998$2509$2510 10:30:03.451Z [/INST] pattern:
\d{4}\$25\d{2}\$25\d{2}\ \d{2}:\d{2}:\d{2}\.\d{3}Z </s>