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', '1075', 'r', '4813', 'N', 'Z', '6071', '1829', 'h', '2477']

9, 1075, 18, 4813, 14, 26, 6071, 1829, 8, 2477