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', 'D', 'V', 'c', 'L', 'm', 'i', '415', '9833', 'C', 'O', 'I', '2039', 'w', 'P', '9119', '9461', '4957', '3737', '3929', 'C', 'e', '7581', 'W', '789', 'd', 'Q', '8597', 'V', '9315', '4997']

11, 4, 22, 3, 12, 13, 9, 415, 9833, 3, 15, 9, 2039, 23, 16, 9119, 9461, 4957, 3737, 3929, 3, 5, 7581, 23, 789, 4, 17, 8597, 22, 9315, 4997