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: ['x', '9299', 'G', 'Z', 'f', '515', 'n', '7073', '7097', 'S', 'I', 'm', 'S', 'r', 'g', 'D', '6285', 'i', 't', '9499', '9537', '81', 'i', 'A', '9389']

24, 9299, 7, 26, 6, 515, 14, 7073, 7097, 19, 9, 13, 19, 18, 7, 4, 6285, 9, 20, 9499, 9537, 81, 9, 1, 9389