LOL
OK, it's 2011
X - your age in 2011
111-x - 2 last digits of the year you were born in
the sum of your age this year and last 2 digits of the year you were born in is equal to x+(111-x)=x+111-x=111 for any x
Same if you take 1811, 1911 or whichever year ending with 11 as the current year.
We didn't die neither in 1812 nor in 1912 so get ready to live at least until 2112
