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: ['4179', 'k', '9631', 'C', 'Q', '7295', 'U', '4107', '6065', 'Q', '1911', '1387', 'M', 'I']

4179, 11, 9631, 3, 17, 7295, 21, 4107, 6065, 17, 1911, 1387, 13, 9