in reply to $A++
It is important not to be the man of only one language. :)
Lisp:
; q (setq A (if (boundp 'A) (+ 1 A) 1) ) ; $A++; [download]
( # ) VARIABLE A 0 A ! : $A++; A @ 1+ A ! ; : :-) ; : ); :-) ; ); $A++; [download]