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: ['w', 'x', 'H', 'b', '5595', 'N', 'l', '2333', 'W', '799', 'X', 'd']

23, 24, 8, 2, 5595, 14, 12, 2333, 23, 799, 24, 4