While loop

Another program I can't figure out. Any help would be appreciated.

set y = 3
set x = 2
set z = 0
while x<12
z = x + y
x = y
y = z
End While
Output y

thanks a lot ,

Whats the problem in this program what output you are getting

Even easier to use than the for loop is the while loop. A while loop doesn't initialize or increment any fields automatically as part of the command, it just tests a condition and executes the loop for as long as the condition remains true. simple ex:

document.write(x); ????

It is C++ . haha . ? i think it is javascript .

Thanks a lot.I am really appreciate your programing figure.