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: ['s', 'N', '8289', 'J', 'M', '8167', '587', '839', 'y', 'I', 'A', 'K', '8075', 'm', 'l', '2725']

19, 14, 8289, 10, 13, 8167, 587, 839, 25, 9, 1, 11, 8075, 13, 12, 2725