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: ['3893', '5501', 'T', 'i', '8777', '8301', '4583', '5329', '8101', '5893', '4423', 'w', 'i', '8955', 'n', '2507', '7429', 'm', 'C', '3713', '799', '8607', 'a', '4349']

3893, 5501, 20, 9, 8777, 8301, 4583, 5329, 8101, 5893, 4423, 23, 9, 8955, 14, 2507, 7429, 13, 3, 3713, 799, 8607, 1, 4349