Python Taskbook Level 3.6

Задание 1

Given a list of numbers, remove from it numbers that consist of more than three digits.

Задание 2

Given a string, check that this string consists only of numbers.

Задание 3

Given a number, for example, like this:

pythonnum = 12345;

Check that all digits of this number are greater than zero.

Задание 4

Two lists are given:

pythonlst1 = [1, 2, 3, 4, 5]
lst2 = [1, 2, 3]

Check that all the elements of the first list are in the second.