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

Find a regex pattern that matches the following string:
2020%5B05%5B02 16%2619%2635.090Z [/INST] pattern:
\d{4}%5B\d{2}%5B\d{2}\ \d{2}%26\d{2}%26\d{2}\.\d{3}Z </s>