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: ['Z', 'G', 'w', '3499', '9307', 'f', '2681', 'm', '5231', '2087', 'z', '1523', '6027', 'O', '715', 'n', '1437', '7349', 'A', '8293', 'h', 'v', 'p', 'L', '9013', 'Z', 'z', '2473', '1021', 'k', 'O', '6073', 'n', '3129', 'L', 'J', 'y', 'v', '1141']

26, 7, 23, 3499, 9307, 6, 2681, 13, 5231, 2087, 26, 1523, 6027, 15, 715, 14, 1437, 7349, 1, 8293, 8, 22, 16, 12, 9013, 26, 26, 2473, 1021, 11, 15, 6073, 14, 3129, 12, 10, 25, 22, 1141