Let’s CRACK the code (or Wookie’s bio) [Random]

So Ryeowook updated his Bio to —– “Super Show4~ So~TsmT – F – SJ s.d S”

Obviously it’s related to SS4, not sure whether it’s a code, but then again I think it is.
My guesses are based on what SJ have hinted and where they are most likely to go,
and also from Wookie’s point of view…

UPDATED… So Ryeowookie changed his bio “So~TsmT – F – S.J_st S”

Seoul (South Korea) – Nov. 19th & 20th, 2011
Osaka (Japan) – Dec. 10th & 11th, 2011
Taipei (Taiwan) – Feb. 2nd – 5th, 2012
Singapore – Feb. 18th & 19th, 2012
Macau (China) – March 9th & 10th, 2012
Bangkok (Thailand) – March 16th – 18th, 2012
Paris (France) – April 6th, 2012
Shanghai (China) – April 14th, 2012
Jakarta (Indonesia) – April 28th & 29th, 2012
Sydney (Australia) – May 5th, 2012
Tokyo (Japan) – May 12th & 13th, 2012

Now the question is … What is the last S ??? 

Source: Super Junior R (ryeong9)