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

Find a regex pattern that matches the following string:
2008%2F02%2F11+01$2B31$2B50 [/INST] pattern:
\d{4}%2F\d{2}%2F\d{2}\+\d{2}\$2B\d{2}\$2B\d{2} </s>