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

Find a regex pattern that matches the following string:
2013%2F09%2F14 08:48:18.830Z [/INST] pattern:
\d{4}%2F\d{2}%2F\d{2}\ \d{2}:\d{2}:\d{2}\.\d{3}Z </s>