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

Find a regex pattern that matches the following string:
1992%7B11%7B08 17%5B08%5B25.254 [/INST] pattern:
\d{4}%7B\d{2}%7B\d{2}\ \d{2}%5B\d{2}%5B\d{2}\.\d{3} </s>