Advent of Code https://adventofcode.com/

(def y 2021)

         v
        >X<
         A
        d$b
      .d\$$b.
    .d$i$$\$$b.
       d$$@b
      d\$$$ib
    .d$$$\$$$b
  .d$$@$$$$\$$ib.
      d$$i$$b
     d\$$$$@$b
  .d$@$$\$$$$$@b.
.d$$$$i$$$\$$$$$$b.
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