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: ['m', '5661', '2409', 'V', '6165', '4283', '9961', 'F', '5733', 'o', '1279']

13, 5661, 2409, 22, 6165, 4283, 9961, 6, 5733, 15, 1279