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: ['3019', '8515', 'M', 'B', 'o', 'T', 't', 'D', 'B', '8413', '2033', '657', 'X', '3809', '5187', '3391', 'V', 'j', '41', 'Q', '5029']

3019, 8515, 13, 2, 15, 20, 20, 4, 2, 8413, 2033, 657, 24, 3809, 5187, 3391, 22, 10, 41, 17, 5029