#Write a program that reads a positive integer and finds the number of 
#digits in the input, sum of the digits, and the average of the digits. 
count_digit=0
sum=0
num=int(input("enter positive integer "))
save_num=num
if(num>0):
	while(num>0):
		d=num%10
		num=num//10
		sum=sum+d
		count_digit=count_digit+1
	print("there are", count_digit, "digits in", save_num)
	print("their sum", sum)
	print("their average", sum/count_digit)
else:
	print("in valid input")