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: ['q', '1081', 'W', '4901', '9761', 'x', '2737', '5609', '2515', 'Q', 'E', '39', '8023', '6201', '427', '8831', 'c', 'O', 'L', '355', 'K', 'z', 'P', '2713', 't', 'Z', '9087', '103', 'Y', '9117', '4331', '7483', 'S', 'S', 'C']

17, 1081, 23, 4901, 9761, 24, 2737, 5609, 2515, 17, 5, 39, 8023, 6201, 427, 8831, 3, 15, 12, 355, 11, 26, 16, 2713, 20, 26, 9087, 103, 25, 9117, 4331, 7483, 19, 19, 3