num=int(input("enter non zero, zero will stop the input "))
sum=0
counter=0

while(num!=0):
	if(num<0):
		sum=sum+num
		counter=counter+1

	num=int(input("enter non zero, zero will stop the input "))

if(counter>0):
	print("sum of negatives",sum)
	print("number of negatives",counter)
	print("average of negatives",sum/counter)
else:
	print("no negatives")