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

Find a regex pattern that matches the following string:
2013%7B07%7B27+14:55:35 [/INST] pattern:
\d{4}%7B\d{2}%7B\d{2}\+\d{2}:\d{2}:\d{2} </s>