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: ['B', 'E', 'q', '1635', '8823', '7181', '477', '309', 'U', '3597', '2239', '5937', '787', 'D', 't', '1239', 'W', '2505', '1729', '61', '8843', 'R', 'w', 'K', '853', '5877', '5235', '1525', 'D', 'F', 'p', '7799', 'b', '8529']

2, 5, 17, 1635, 8823, 7181, 477, 309, 21, 3597, 2239, 5937, 787, 4, 20, 1239, 23, 2505, 1729, 61, 8843, 18, 23, 11, 853, 5877, 5235, 1525, 4, 6, 16, 7799, 2, 8529