pylon

# Question 7

def unique_list(l):
  x = []
  for a in l:
    if a not in x:
      x.append(a)
  return x

print(unique_list([1,2,3,3,3,3,4,5]))

# Question 8

my_list = [5, 3, 7, 9, 2, 5, 5, 3, 10, 8, 7]

print('The list is {0}'.format(my_list))

def backways(alist):
  return alist[::-1]

print(backways(my_list)


# Question 9

my_list = [5, 3, 7, 9, 2, 5, 5, 3, 10, 8, 7]

print('The list is {0}'.format(my_list))

def sum_list(alist):
  total = 0
  for i in range(len(alist)):
    total += alist[i]
  return total

print(sum_list(my_list))