mineo@je9pel:~/yomogi$ grep 2025-01-26 HHVN-9456-4962-8588-2802-1945-20250126T114031Z-week.csv > wip.csv
mineo@je9pel:~/yomogi$ ruby ext.rb B0
OOOOOOOOOOOOOOOOOOOOOOO
FFD9 found, stopping process.
Gap detected : []

[ext.rb]
[URL]