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: ['5617', '7113', 'g', 'd', 'Z', 'a', '5101', 'I', 'd', '8929', 'I', '8199', 'y', '6511', 'Q', '2423', 'n', 'F', '6675', '7517', '7597', '3641', 'S', '897', '4971']

5617, 7113, 7, 4, 26, 1, 5101, 9, 4, 8929, 9, 8199, 25, 6511, 17, 2423, 14, 6, 6675, 7517, 7597, 3641, 19, 897, 4971