src/advent25/advent25sample.txt

   1 Begin in state A.
   2 Perform a diagnostic checksum after 6 steps.
   3
   4 In state A:
   5   If the current value is 0:
   6     - Write the value 1.
   7     - Move one slot to the right.
   8     - Continue with state B.
   9   If the current value is 1:
  10     - Write the value 0.
  11     - Move one slot to the left.
  12     - Continue with state B.
  13
  14 In state B:
  15   If the current value is 0:
  16     - Write the value 1.
  17     - Move one slot to the left.
  18     - Continue with state A.
  19   If the current value is 1:
  20     - Write the value 1.
  21     - Move one slot to the right.
  22     - Continue with state A.