http://adventofcode.com/

To run the puzzles against your own input, use chrome dev tools to learn your session cookie value, then
export it, e.g.


    $ export ADVENT_SESSION=5361xxxxxxxxxxxxxxxxxxxxxxxxxxxxx....
    $ python day1.py


or


    C:\Users\...\>set ADVENT_SESSION=53616c746564xxxxxx.....
    C:\Users\...\>python day1.py
    final floor 138
    basement at 1771