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: ['593', 'm', '9125', 'U', '9615', 'j', '951', '9089', '1847', '127', 'C', 't', 'j', 'z', 'Q', 'Q', '5477']

593, 13, 9125, 21, 9615, 10, 951, 9089, 1847, 127, 3, 20, 10, 26, 17, 17, 5477