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: ['e', 'v', '6711', 'g', 'J', '6075', '6029', '3575', 'f', '1471', 'W', '6559', '7935', '7423', 'U', 'H', '3657', 'M', '6481', '6925', '4973', '7801', 'F', '4723', '3861', 'x', 'Y', 'n', '9991', '6341', 'w', '5931']

5, 22, 6711, 7, 10, 6075, 6029, 3575, 6, 1471, 23, 6559, 7935, 7423, 21, 8, 3657, 13, 6481, 6925, 4973, 7801, 6, 4723, 3861, 24, 25, 14, 9991, 6341, 23, 5931