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

Find a regex pattern that matches the following string:
2001%5F08%5F18+09$5C15$5C39Z [/INST] pattern:
\d{4}%5F\d{2}%5F\d{2}\+\d{2}\$5C\d{2}\$5C\d{2}Z </s>