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

Find a regex pattern that matches the following string:
1990$7E05$7E09 17$7B28$7B45.588Z [/INST] pattern:
\d{4}\$7E\d{2}\$7E\d{2}\ \d{2}\$7B\d{2}\$7B\d{2}\.\d{3}Z </s>