# 5 For the first one we treat the codes as 2 binary codes. One 7 and the other 3 long. The second tripped me up as I was returning the binary encoded ticket number but AOC was expecting the seat ID. My bad, took me long to get it. Thanks to @tcq1 <details> <summary>Solutions</summary> <ol> <li>998</li> <li>84, 4 -> 676</li> </ol> </details>