#Write a program that randomly generates the list of 10 integers between 
#-100 and 100. The program finds the sum and average of the even elements 
#of the list 


#functions to write:
#1. make_list_random - accept 3 parameters, size of the list, and min and 
#max bounds to generate the data. Function returns randomly generated list

#2. count_even - has one parameter, list of integers, function returns the 
#number of even elements

#3. sum_even - has one parameter, list of integers, function returns the
#sum of even elements

import random

def make_list_random(size, min, max):
	my_list=[]
	for i in range(size):
		my_list.append(random.randint(min, max))
	return my_list

def count_even(my_list):
	count=0
	for i in range(len(my_list)):
		if(my_list[i]%2==0):
			count+=1
	return count

def sum_even(my_list):
	total=0
	for i in range(len(my_list)):
		if(my_list[i]%2==0):
			total=total+my_list[i]
	return total

def main():
	
	my_list=make_list_random(10,-100, 100) 
	print(my_list)
	count=count_even(my_list)
	if(count>0):
		print("there are", count,"evens in the list")
		sum=sum_even(my_list)
		print("sum of evens is", sum, "average of evens is",sum/count)
	else:
		print("no evens")
main()