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: ['Z', 'Z', '2839', '3091', '729', '2079', 'g', 'V', '9085', '1491', 'A', '8615', 'F', 'n']

26, 26, 2839, 3091, 729, 2079, 7, 22, 9085, 1491, 1, 8615, 6, 14