def main():
print("main function")
def sum_(L):
""" L is a list of integers
returns the sum of all elements of the list"""
# put your code here
def average(L):
""" L is a list of integers
returns the average of all elements of the list"""
# put your code here
def sumOfSquares(L):
""" L is a list of integers
returns a new list of squares of elements of list L,
does not modify the original list """
# put your code here
def product(L):
""" L is a list of integers
returns the product of all elements of the list"""
# put your code here
def min_(L):
""" L is a list of integers
returns the smallest element of the list"""
# put your code here
def max_(L):
""" L is a list of integers
returns the greatest element of the list"""
# put your code here
def readFromFile():
""" prompts for the file name,
reads values from it (separated by space and new line),
stores them in a list,
returns the list of values from file """
# put your code here
def outputToFile(s):
""" prompts for the file name,
writes string s into it """
# put your code here