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

Find a regex pattern that matches the following string:
2012%2504%2515+15$2557$2552 [/INST] pattern:
\d{4}%25\d{2}%25\d{2}\+\d{2}\$25\d{2}\$25\d{2} </s>