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: ['f', 'K', '7695', '5485', 'M', '985', '6995', 'Z', '6037', '2013', '2799', 'e', '5539', '697', 's']

6, 11, 7695, 5485, 13, 985, 6995, 26, 6037, 2013, 2799, 5, 5539, 697, 19