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

Find a regex pattern that matches the following string:
2020%2602%2622T21$2001$2058.950Z [/INST] pattern:
\d{4}%26\d{2}%26\d{2}T\d{2}\$20\d{2}\$20\d{2}\.\d{3}Z </s>