def recycle():
	pounds=float(input("enter pounds "))
	num_weeks=0
	total_points=0
	while(pounds>0):
		total_points+=pounds*2.5
		num_weeks+=1
		pounds=float(input("enter pounds "))
	if(num_weeks>0):
		return total_points, total_points/num_weeks, num_weeks
	else:
		return 0,0,0
def main():
	total_points, ave, weeks=recycle()
	if(weeks==0):
		print("empty input")
	else:
		print("total points", total_points)
		print("ave", ave)
		print("number of weeks", weeks)
main()