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.

['t', 'U', '4407', '8601', 'd', 'D', '1209', '7387', 'A', '6899', 'k', '653', '1929', '4271', 'a', '997', 'Z', 'S', 'A', 'Z', 'o', 'E', 'p', 'Q', 'r', 'J']
20, 21, 4407, 8601, 4, 4, 1209, 7387, 1, 6899, 11, 653, 1929, 4271, 1, 997, 26, 19, 1, 26, 15, 5, 16, 17, 18, 10

['y', 'L', '1587', '8235', '4495', '2811', 'J', '4389', 'g', '3171', '2569', 'R', '6057', '6261', 'g', '1081', 'I', '4487', '6809', 'p', 'm', '5991', '625']
25, 12, 1587, 8235, 4495, 2811, 10, 4389, 7, 3171, 2569, 18, 6057, 6261, 7, 1081, 9, 4487, 6809, 16, 13, 5991, 625

['4207', '2891', 'L', '4189', '9733', 'q', 'n', '3439', '7655', 'N', 'd', '5305', '7317', 'C', '6155', '7375', 'B', '3829', 'C', '3293', '7389', '5495', 'Z', '5329', '9189', 's', '7277', '4815', 'k', '2447', '7507', 'w', 'w', 's', 'U', 'l', 'F', 't']
4207, 2891, 12, 4189, 9733, 17, 14, 3439, 7655, 14, 4, 5305, 7317, 3, 6155, 7375, 2, 3829, 3, 3293, 7389, 5495, 26, 5329, 9189, 19, 7277, 4815, 11, 2447, 7507, 23, 23, 19, 21, 12, 6, 20