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: ['H', '111', 'G', 'G', '3753', '4401', '1953', '9035']

8, 111, 7, 7, 3753, 4401, 1953, 9035