Can you unlock the door?

You need to get through a door. I'm not quite sure why, but you do. The code consists of four numbers. You can put down as many numbers as you like, but the door will not open until it has detected all those numbers in order, right after each other,

(Note: This is not finished so don't try playing it yet.)

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This article is burly men unfolding umbrellas.   Maybe you should help it on its way.

File:Panneau travaux.png