Помогите решить две задачи. Python, програмирование.

9:

import random

debug = True

i = 0

ls = []

r = random.randint(5, 40)

while i < r:

tmp = []

t = random.randint(1, 20)

ii = 0

while ii < t:

tmp.append(random.randint(1, 20))

ii += 1

ls.append(tmp)

i += 1

if debug == True:

print(ls)

i = 0

sm = 0

while i < len(ls)-1:

if i % 2:

sm += sum(ls[i])

i += 1

print(sm)

10:

ls = [] #ваш массив

mx = ls.index(max(ls))

mn = ls.index(min(ls))

i = mx

sm = 0

while i < mn:

sm += ls[i]

i += 1

print(sm)