Demonstration version of EGE on computer science.
The task:
Petya recorded the IP address of the school server on a sheet of paper and put it in his jacket pocket. Petina’s mother accidentally washed her jacket along with the note. After washing, Petya found four pieces of IP address in his pocket. These fragments are marked with the letters A, B, B and G. Restore the IP address.
In the answer, specify the sequence of letters indicating fragments in the order corresponding to the IP address.
Fragments:.64 - 3.13 - 3.133 - 20

Huiase, the boy Peti's school in Japan is...