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: ['8187', '7715', 'j', 'k', 'I', 'J', 'V', '171']

8187, 7715, 10, 11, 9, 10, 22, 171