Diff of SSSS

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.
• Go to SSSS.

- 搭乗券に｢SSSS｣のマークがあったら覚悟しておくべきこと
--  https://www.lifehacker.jp/2017/10/171003-what-it-means-when-you-get-ssss-on-your-boarding-pass.html