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: ['3029', 'm', 'h', '4863', '8523', 'w', '8541', '2235', 'V', 'm', 'T', 'Q', '6131', '4481', '8717', '5893', 'D', '8113', '4335', '2689', 'i', 'R', 'w', 'e', '5419', '989', 'm', '5659', '5255', '1353']

3029, 13, 8, 4863, 8523, 23, 8541, 2235, 22, 13, 20, 17, 6131, 4481, 8717, 5893, 4, 8113, 4335, 2689, 9, 18, 23, 5, 5419, 989, 13, 5659, 5255, 1353