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: ['L', 'D', 'F', 'w', 'e', 'K', 'p', 'Z', 'k', 'w', 'p', '6215', '1591', 'x', 'r', 'T', 'T', 's', '8403', 'w', '4001', '8625', '9433', '9265', 'K']

12, 4, 6, 23, 5, 11, 16, 26, 11, 23, 16, 6215, 1591, 24, 18, 20, 20, 19, 8403, 23, 4001, 8625, 9433, 9265, 11