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: ['e', 'H', '7749', '4155', 't', '7885', 'O', '7705', '9225', '7331', '4343', 'G', '9875', 'w', '593', '5929', '7215', 'V', 'R', '1603', '4359', '61', '9895', '7187', 'G', 'm', '1209', 'K', '9373', 'u', 'L', '7331', 'D', '8347', '3707', '3185', '6299', 'p']

5, 8, 7749, 4155, 20, 7885, 15, 7705, 9225, 7331, 4343, 7, 9875, 23, 593, 5929, 7215, 22, 18, 1603, 4359, 61, 9895, 7187, 7, 13, 1209, 11, 9373, 21, 12, 7331, 4, 8347, 3707, 3185, 6299, 16