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

Find a regex pattern that matches the following string:
2012%3F08%3F17+18$2551$2500 [/INST] pattern:
\d{4}%3F\d{2}%3F\d{2}\+\d{2}\$25\d{2}\$25\d{2} </s>