Secret Code

After the Americans announced several times, “We are not sure whether Bin Laden is alive or not.” Afterwards Bin Laden decided to autograph write a personal letter to U.S. President Bush, for proving that he is still alive and won't would not stop taking action. After Bush opened the envelope and he saw the following characters which looked like secret code:
 370HSSV 0773H

Bush was shocked, so he emailed the code to Secretary of State Colin Powell.

Colin and his assistant thought it over and over again, but couldn't crack the code yet. Therefore they asked FBI. However, none of FBI, CIA, NASA and National Security Agency (NSA) understood the implication of the code.

At their wit's end, they sought help from the British Secret Intelligence Service (MI6).

Q and 007 read the code then called the hotline of White House.


Q said, "Please tell Mr. President that he had turned the letter upside down..."

(You may highlight the real code below, after taking a guess.)
370HSSV 0773H