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: ['E', 'p', '7529', 'U', '8777', 'o', 'S', 'C', 'V', '2525', 'm', '6469', '1363', '1953', '4277', '4413', 'y', '4001', 'E', 'K', '8347', 'z', 'W', '3741', 'i', 'r', '2983', '9721', '7005', 'w', 'G', '5331', 'T', '9835', '1697']

5, 16, 7529, 21, 8777, 15, 19, 3, 22, 2525, 13, 6469, 1363, 1953, 4277, 4413, 25, 4001, 5, 11, 8347, 26, 23, 3741, 9, 18, 2983, 9721, 7005, 23, 7, 5331, 20, 9835, 1697