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

Find a regex pattern that matches the following string:
2019$3E06$3E24T21:44:04.947Z [/INST] pattern:
\d{4}\$3E\d{2}\$3E\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z </s>