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.

['7471', 'k', '5537', '3569']
7471, 11, 5537, 3569

['W', 'Y']
23, 25

['m', '1751', 'e']

13, 1751, 5