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

Find a regex pattern that matches the following string:
1991%7C07%7C22 05:12:57.662Z [/INST] pattern:
\d{4}%7C\d{2}%7C\d{2}\ \d{2}:\d{2}:\d{2}\.\d{3}Z </s>