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: ['4061', 'a', 'J', '5415', '2607', '6493', '8937', 'E', '7195', 'R', '1519', 'g', '4361', 'j', 'C', 'o', 'k', 'a', '1225', '359', '9819', '6845', '7397', 'G', 'Z', '6689', 'Z', '1723', 'w', 'k', 'o']

4061, 1, 10, 5415, 2607, 6493, 8937, 5, 7195, 18, 1519, 7, 4361, 10, 3, 15, 11, 1, 1225, 359, 9819, 6845, 7397, 7, 26, 6689, 26, 1723, 23, 11, 15