Mr. Derrick runs an office in his home. It’s a small office with three rooms.
He stays in office day and night, without rest he will work.
One day, as usual he was busy with his work.
It is already late; security locked the office main gate without noticing Derrick presence.
He locked the door with a secret code. Though Derrick was owner of the office, he doesn’t know the secret codes…
Unfortunately, he has an important meeting; he has to leave as soon as possible to take the flight.
He was so tensed…
He lost his patience by trying all possible codes that came into his mind.
Please help him to go out, he has to sign the important deal…….