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: ['3923', 'v', '4343', '3977', 'b', '6401', '9383', '7277', 'G', 'z', 'C', 'y', '927', 'o', 'L', '3573', '547', 'y', 'D', '3867', 'g', 'K', '4297', 'M', 'b', 'i', '8531', 'M', '9669', 'N', '2419', 'U', '1363', '7735', 'f', 'a', '8811', 'N', 'W']

3923, 22, 4343, 3977, 2, 6401, 9383, 7277, 7, 26, 3, 25, 927, 15, 12, 3573, 547, 25, 4, 3867, 7, 11, 4297, 13, 2, 9, 8531, 13, 9669, 14, 2419, 21, 1363, 7735, 6, 1, 8811, 14, 23