🎄⌨️ Advent of Code 2018

Artifact [2da4b4]

Artifact 2da4b4a4b1812bbc7e59d31764f7e4f87a6230372fbf87782eae50fbf33138e9:


/>-<\  
|   |  
| /<+-\
| | | v
\>+</ |
  |   ^
  \<->/