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: ['7299', 'S', '4467', '5497', 'Z', '6063', 'C', 'a', 'N', '887', 'g', 's', 'P', '2901', '7071', '6663', '3645', '2811', '3265', '3459', '4011', '1465', '155', '8913', 'T', 'T', 'D', 's', 'Q', 'B', '5309', '5101', 'I', 'O', 'F', 'C', '3725', '5673', '8947', 'H']

7299, 19, 4467, 5497, 26, 6063, 3, 1, 14, 887, 7, 19, 16, 2901, 7071, 6663, 3645, 2811, 3265, 3459, 4011, 1465, 155, 8913, 20, 20, 4, 19, 17, 2, 5309, 5101, 9, 15, 6, 3, 3725, 5673, 8947, 8