Escape of Mexican Drug Dealer's House

Correct! You wait 1 hour until the coast is clear. You exit the room that you were just in and enter the hallway. You realize that you are not the only one that was kidnapped. The hallway, that was 200 feet long had 20 rooms on each side with one prisoner each. You realize that you have to act fast, and you see to your right is the elevator with security cameras and to your left is the staircase. Which one do you chose?