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

Find a regex pattern that matches the following string:
2000$7C02$7C21T05:02:00 [/INST] pattern:
\d{4}\$7C\d{2}\$7C\d{2}T\d{2}:\d{2}:\d{2} </s>