What's the secret code for the handwritten bombing in Conan's Shake the Metropolitan Police Department120,000 Hostages?

Song Tian's "Stick a Bullet" reads: Brave police officer, I sincerely praise your courage. Another bigger fireworks hasn't been released yet. I'll be here three seconds before the explosion to provide clues. Song Tian died after sending Sato the location before the explosion. Venue: Conan's bullet in Mihua Central Hospital reads: Brave police officer, I sincerely praise your courage, and set off large fireworks at the end of the game. Position indication is displayed 3 seconds before explosion. Do a good job! Conan told Takagi the reasoning, Takagi sent a short message to Sato, and then waited for the final prompt, which was E V I T. After that, Conan was disconnected and inferred that the location was in Didan High School.