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.

['z', 'T', '6539', '4753', '9599', '2879', 'q', 'G', 'r', 'B', '1233', '1939', 'X', '4005', 'i', '8585', 'B', '2503', 'm', 'l', '4169', '805', '8221', 'M', 'D', 'N', '6359', '2817', '6441', '7501', '9015', 'I', 'I']
26, 20, 6539, 4753, 9599, 2879, 17, 7, 18, 2, 1233, 1939, 24, 4005, 9, 8585, 2, 2503, 13, 12, 4169, 805, 8221, 13, 4, 14, 6359, 2817, 6441, 7501, 9015, 9, 9

['3839', 'z', 'y', 'T', 'v', 'w', '2469', '2651', '499', '7407', 'O', 'Q', 'e']
3839, 26, 25, 20, 22, 23, 2469, 2651, 499, 7407, 15, 17, 5

['w', '6303', '961', '3347', 'i', '4759', '7113', '9937', 'E', 'L', 'D', 'R', '1001', 'U', '491', '7045', '1053', 'i', '6701', '7363', 'F', 'R', '1593', 'R', 'e', '7389', 'c', 'x', '9141', 'j', '5019', 'E', 'u', 'R', '3645', 'W']

23, 6303, 961, 3347, 9, 4759, 7113, 9937, 5, 12, 4, 18, 1001, 21, 491, 7045, 1053, 9, 6701, 7363, 6, 18, 1593, 18, 5, 7389, 3, 24, 9141, 10, 5019, 5, 21, 18, 3645, 23