Manectric Sticker Sidequest

==Information==
Location: Agate City
Available: After Badge 16
==Guide==
In the house to the right of the Agate City Pokémon Center, the player can meet Sarena, the property manager for Agate City. The house she's in has been unoccupied for a long time, and she's attempting to investigate what happened to its previous resident. Inside the house is a computer that asks for a password, seemingly related to Team Meteor. 
To acquire the password, the player must go through several steps. Firstly, using the Meteor Card obtained from the Glass Workstation, return to the Devon Corp? building in the North Obsidia Ward and scan the Card on the terminal in the room where the player's allies were released from captivity. This will open a chute in the captivity chambers, allowing the player to descend into the building's basement.
The following puzzle is extremely difficult. Refer to this link for a comprehensive guide on completing the puzzle, if help is required. The puzzle acts as an interlocked Magic Square puzzle, where the player must solve both puzzles simultaneously, as their actions on one puzzle affect the other. Completing the puzzle will reward the player with the Darkinium-Z, the Gardevoirite, TM24 Thunderbolt, and the password for the computer back in Agate City; 139749.
Returning to Agate City, the player can give the password to Sarena, who will input it into the computer, unlocking a secret room. She remarks at how the property value for the house has just increased, and as thanks for solving the mystery of the house, rewards the player with the Manectric Sticker. The Manectite is also available in the hidden room.