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: ['N', 'q', '2221', '7529', '9637', '3675', '6257', '2715', 'S', '6807', 'I', 'H', 'P', '899', 'K', 'P', '1939', '9837', 'H', '4525', 'k', '329', 'T', '4583', '6235', '3051', 'J', '9459', '3781', 'e', '6093', '8527', 'O', '6719', '2297']

14, 17, 2221, 7529, 9637, 3675, 6257, 2715, 19, 6807, 9, 8, 16, 899, 11, 16, 1939, 9837, 8, 4525, 11, 329, 20, 4583, 6235, 3051, 10, 9459, 3781, 5, 6093, 8527, 15, 6719, 2297