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: ['i', 'n', '2005', '6057', 'y', 's', 'O', '3485', 'u', '8605', '4051', 'Q', 'g', '9045', 'O', '9285', 'K', '6887', '2701', 'Z', '6435', 'j']

9, 14, 2005, 6057, 25, 19, 15, 3485, 21, 8605, 4051, 17, 7, 9045, 15, 9285, 11, 6887, 2701, 26, 6435, 10