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: ['d', 'H', '5681', '3261', '399', 'y', 'H', 'v']

4, 8, 5681, 3261, 399, 25, 8, 22