Implement day 12 part 2
Implement day 12 part 2

bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode,bertptrs/adventofcode