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', 'A', '9095', 'c', '1469', 'Q', 'L', '5679', 's', '1463', 'Q', 'J', '5861', 'k', 'L', 'x', '6771', 'D', 'W', '4633', '857', 'g', '9193', '291', '4073', 't', '6277', '3495', 'O', '4081']

4, 1, 9095, 3, 1469, 17, 12, 5679, 19, 1463, 17, 10, 5861, 11, 12, 24, 6771, 4, 23, 4633, 857, 7, 9193, 291, 4073, 20, 6277, 3495, 15, 4081