#write a function that has one parameter - list of integers
#function returns sum  of list elements
#write main to test your function
import random
def sum_list(my_list):
	total=0
	for i in range(len(my_list)):
		total=total+my_list[i]
	return total


def main():
	size=random.randint(5,15)
	print(size)
	my_list=[]
	for i in range(size):
		my_list.append(random.randint(-10,10))
	print(my_list)
	total=sum_list(my_list)
	print(total)
main()