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: ['q', '5531', '2219', 's', 'q', 'E', 'f', 'S', 'V', '3185', 'w', 'm', 'p', '945', '6247', '7141', '2319']

17, 5531, 2219, 19, 17, 5, 6, 19, 22, 3185, 23, 13, 16, 945, 6247, 7141, 2319