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', 'm', '167', '521', '6385', 'P', '8757', 'k', '6385', '9617', 'W', 'K', '641', 'R', '4389', 'O', 'T', '7877', '5403', '5083', 'F', 't', '3663', 'X', 'e', 'P', '265', 'W', 'i', 'w', 'd', '7457', 'Z', '7047', 'j']

11, 13, 167, 521, 6385, 16, 8757, 11, 6385, 9617, 23, 11, 641, 18, 4389, 15, 20, 7877, 5403, 5083, 6, 20, 3663, 24, 5, 16, 265, 23, 9, 23, 4, 7457, 26, 7047, 10