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

Find a regex pattern that matches the following string:
1996%3D06%3D04+07:38:05.272Z [/INST] pattern:
\d{4}%3D\d{2}%3D\d{2}\+\d{2}:\d{2}:\d{2}\.\d{3}Z </s>