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: ['8763', 'k', 'k', '2827', '8269', 'T', '3961', '6589', '4817', '2701']

8763, 11, 11, 2827, 8269, 20, 3961, 6589, 4817, 2701