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

Find a regex pattern that matches the following string:
2005-08-21 10$3B26$3B33.169Z [/INST] pattern:
\d{4}\-\d{2}\-\d{2}\ \d{2}\$3B\d{2}\$3B\d{2}\.\d{3}Z </s>