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

Find a regex pattern that matches the following string:
2001$3D02$3D07T05%2635%2614.398 [/INST] pattern:
\d{4}\$3D\d{2}\$3D\d{2}T\d{2}%26\d{2}%26\d{2}\.\d{3} </s>