Advanced C Programming
                                           Spring 2004


   Excercise 13E (Extra exercise)
         
         
	We saw that keyword static makes local variable permanent. 
        This also means that it is initialized only once, when 
        the function is first called. 


        Write a function getNext, that returns 1 when it is called
        first time. Next time it is called it returns 3 (1 + 2) 
        and 6 when it is called third time. This means that the 
        function getNext always returns the value 

              1 + 2 + 3 + 4 +  ... + n
	        
        when called n times.