Python Taskbook Level 4.3

Задание 1

Given a list, remove every fifth element from it.

Задание 2

Given two numbers, get a list of common factors of these numbers.

Задание 3

Two numbers are given:

pythontxt1 = 12345
txt2 = 45678

Get a tuple of digits that are in both numbers:

python(4, 5)

Задание 4

Given a list:

python[
  [
    [11, 12, 13],
    [14, 15, 16],
    [17, 17, 19],
  ],
  [
    [21, 22, 23],
    [24, 25, 26],
    [27, 27, 29],
  ],
  [
    [31, 32, 33],
    [34, 35, 36],
    [37, 37, 39],
  ],
]

Find the sum of the elements of this list.