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

Find a regex pattern that matches the following string:
2026%5B04%5B04+12:12:49.902 [/INST] pattern:
\d{4}%5B\d{2}%5B\d{2}\+\d{2}:\d{2}:\d{2}\.\d{3} </s>