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: ['1579', '2991', '5717', 'w', 'Y', '5025', 'w', '7485', '4201', 'K', 'z', '8587', '3981', 'E', 'Z', '8635', '4367', 'r', 'w', '2685', 'Q', '4253', '1905', '9899', 'I', '3409', 'K', '3411', 'J', '451', 'v', '9191']

1579, 2991, 5717, 23, 25, 5025, 23, 7485, 4201, 11, 26, 8587, 3981, 5, 26, 8635, 4367, 18, 23, 2685, 17, 4253, 1905, 9899, 9, 3409, 11, 3411, 10, 451, 22, 9191