## \-\-- Day 10: Elves Look, Elves Say \-\--

Today, the Elves are playing a game called
[look-and-say](https://en.wikipedia.org/wiki/Look-and-say_sequence).
They take turns making sequences by reading aloud the previous sequence
and using that reading as the next sequence. For example, `211` is read
as \"one two, two ones\", which becomes `1221` (`1` `2`, `2` `1`s).

Look-and-say sequences are generated iteratively, using the previous
value as input for the next step. For each step, take the previous
value, and replace each run of digits (like `111`) with the number of
digits (`3`) followed by the digit itself (`1`).

For example:

-   `1` becomes `11` (`1` copy of digit `1`).
-   `11` becomes `21` (`2` copies of digit `1`).
-   `21` becomes `1211` (one `2` followed by one `1`).
-   `1211` becomes `111221` (one `1`, one `2`, and two `1`s).
-   `111221` becomes `312211` (three `1`s, two `2`s, and one `1`).

Starting with the digits in your puzzle input, apply this process 40
times. What is *the length of the result*?

Your puzzle answer was `360154`.

## \-\-- Part Two \-\-- {#part2}

Neat, right? You might also enjoy hearing [John Conway talking about
this sequence](https://www.youtube.com/watch?v=ea7lJkEhytA) (that\'s
Conway of *Conway\'s Game of Life* fame).

Now, starting again with the digits in your puzzle input, apply this
process *50* times. What is *the length of the new result*?

Your puzzle answer was `5103798`.

Both parts of this puzzle are complete! They provide two gold stars:
\*\*

At this point, you should [return to your Advent calendar](/2015) and
try another puzzle.

Your puzzle input was `1113122113`{.puzzle-input}.