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', '413', 'E', 'A', '1575', '9079', '1845', 'I', 'M', 'a', '4089', '9243', '3737', 'g', 'I', 'M', '9799', '7757', '3383', 'k', '3905', '2951', 'g', '4875', 'x', 'E', 'N', 'z']

22, 413, 5, 1, 1575, 9079, 1845, 9, 13, 1, 4089, 9243, 3737, 7, 9, 13, 9799, 7757, 3383, 11, 3905, 2951, 7, 4875, 24, 5, 14, 26