Python Taskbook Level 5.7

Задание 1

Ask the user to enter their phone number. Check if they entered the correct value.

Задание 2

Ask the user to enter ten numbers. Store the resulting numbers in a list, then take the arithmetic mean of these numbers and display the result.

Задание 3

Output to the console the dates of all weekends of the current year in the format year-month-day.

Задание 4

Given a number:

python123456

Find the sum of the pairs of digits of this number. In our case, we mean the following:

python12 + 34 + 56