loops goes on forever

[alsimm]

Hi all,
Great! thanks a lot for the replies,as a result I ended up with the following code that workd fine

ding =0
while ding <3:
 
    def light(green1,green2,green3):
        return green1+green2+green3
    green1=raw_input ('enter a number')
    green2= raw_input ('enter another number')
    green3 = raw_input ('now enter a third number')
    ding +=1
    print light(int(green1),int(green2),int(green3))

 
kind regards
al