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

Find a regex pattern that matches the following string:
2013%2F08%2F23T02%5B07%5B13.707Z [/INST] pattern:
\d{4}%2F\d{2}%2F\d{2}T\d{2}%5B\d{2}%5B\d{2}\.\d{3}Z </s>