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: ['Y', 'l', '9191', 'm', '8255', '8799', '5101', '5089']

25, 12, 9191, 13, 8255, 8799, 5101, 5089