What is the order in which the emperor invited the event to unlock the square monument of the thunder element?

First, we came to the mission site. There are three stone tablets of thunder element. Let's light up 1 with thunder characters first. Then go to lamp 2, lamp 2, and then lamp1; Finally, light 3, and the decryption can be successfully completed.

This task is very simple. The sequence is 1-2- 1-3, which means 1 needs to be shot twice, so some people can't solve it. After the decryption is completed, there will be a king of Raichu Hill. Beat it and finish the task.