Alan Turing: Have you unlocked the secret Google doodle message?

Cracking the third puzzle

Google
Here's the solution to the third Turing puzzle.

This puzzle contains yet another new symbol. The loop symbol tells the Turing machine to jump back a few steps. In this computational conundrum, you need to decide just how far to jump back.

How to solve Turing puzzle #3:

Select the loop symbol with four circles.

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