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: ['311', '3053', 'K', '2651', 'o', 'A', 'H', 'X', 'w', 'B', '587', '4139', '6529', 'W', 'U', '5227', '2073', 'Q', '4507', '9173', 'N', '4517', '6663', '661', '6757', 'w', '1585', '5865', 'Q', '3641', 'O', '5439', '1163', 'N', '2255', '1377', 'B', 'L']

311, 3053, 11, 2651, 15, 1, 8, 24, 23, 2, 587, 4139, 6529, 23, 21, 5227, 2073, 17, 4507, 9173, 14, 4517, 6663, 661, 6757, 23, 1585, 5865, 17, 3641, 15, 5439, 1163, 14, 2255, 1377, 2, 12