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: ['P', '127', '5527', 'G', 'R', '7087', 'E', 'T', 'n', '3681', 'Z', 'Q', '6843', '9395', 'P', '7551', '4677', 'o', 'g', '8023', '3419', 'B', 'i', '9561', '6635', '8805', '223', '7579', 'T', 'S', '8807']

16, 127, 5527, 7, 18, 7087, 5, 20, 14, 3681, 26, 17, 6843, 9395, 16, 7551, 4677, 15, 7, 8023, 3419, 2, 9, 9561, 6635, 8805, 223, 7579, 20, 19, 8807