#write a program that reads a sequence of NON-zero ints
#and prints inputs that are even and div by 3
#the input is terminated by 0

#sentinel controlled repetition
#there is a condition to stop the loop

#find the number of ints that are even and div by 3 and their sum and average

num=int(input("enter non zero int, first zero terminates input "))
counter=0
sum=0

while(num!=0):
	if(num%2==0 and num%3==0):
		print(num)
		counter=counter+1
		sum=sum+num
	num=int(input("enter non zero int, first zero terminates input "))

if(counter>0):
	print("sum", sum)
	print("counter",counter)
	print("average", sum/counter)
else:
	print("no evens div by 3 ")