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

Find a regex pattern that matches the following string:
2015-12-17 06$2429$2447.687Z [/INST] pattern:
\d{4}\-\d{2}\-\d{2}\ \d{2}\$24\d{2}\$24\d{2}\.\d{3}Z </s>