Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['V', 'j', '2355', 'i', 'Z', '8369', 's', '309', '39', 'K', '5581', '1333', 'g']

22, 10, 2355, 9, 26, 8369, 19, 309, 39, 11, 5581, 1333, 7