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: ['6087', '1341', '5385', '5681', '3541', 't', '7925', 'q']

6087, 1341, 5385, 5681, 3541, 20, 7925, 17