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: ['X', 'q', '9899', 'H', '4581', '7353', '5697', 'd', 'u', '1899', '5297', '9991', '1691', 'D', '2029', 'P', '7897', 'N', '7649', '5773', 'T', 'y', 'w', '221', 'W', 'x', '2347', 'c', '8813', 'f', '4701', 'v']

24, 17, 9899, 8, 4581, 7353, 5697, 4, 21, 1899, 5297, 9991, 1691, 4, 2029, 16, 7897, 14, 7649, 5773, 20, 25, 23, 221, 23, 24, 2347, 3, 8813, 6, 4701, 22