Last update: 08.10.2016
Each team will receive a slightly different task, therefore you will need to register before being able to see the input your team should use.
Use the link in your registration confirmation e-mail to view the correct input.

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Welcome to HC2 2016, happy zombie-party!

To help you overcome waves and waves of zombies coming right at you, you decided to build a killer robot! Still fighting the brain-eaters, using just one hand, you managed to build a brilliant, gigantic machine, able to feed on brains! You used it for a few days, greatly helping you with all this zombie-killing.

But there seems to be a pattern emerging from the robot itself... Each time it kills a zombie, a character appears, and some actions the robot does seem to modify the latest character!

You decide to take note of the actions you witness:

  • kill zombies -> c means that the robot killed a zombie and that the character 'c' appeared.
  • grab brain increments the letter by 2, e.g. a -> c, f -> h, w -> y.
  • clean chainsaw decrements the character by 3, e.g. d -> a, f -> c, w -> t.
  • wander here and there helps to find new zombies, but doesn't alter the character.

To make sense of this, you decide to write a program to gather all characters and the resulting sentence.

Please login to see your recorded actions.

Sample

After an hour of following your dedicated kill-machine, you took note of the following operations:

kill zombie -> B
kill zombie -> u
clean chainsaw
wander here and there
kill zombie -> a
grab brain
grab brain
clean chainsaw
wander here and there
clean chainsaw
grab brain
kill zombie -> e
grab brain
wander here and there
grab brain
wander here and there
kill zombie -> n

Which returned:

Brain

Download the example as a text file!