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: ['k', '9865', 'i', 'L', 'G', '1903', 'k', 'M', 'i', 'w', 'c', '3073', 'A', '2885', '4513', '9541', '8419', 'h', '8527', 'W', 'j', 's', '49']

11, 9865, 9, 12, 7, 1903, 11, 13, 9, 23, 3, 3073, 1, 2885, 4513, 9541, 8419, 8, 8527, 23, 10, 19, 49