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', 'K', '8593', '5065', '7979', '8137', '1945', 'O', 'm', '3347', '7603', '6857', '971', 's', 'e', 'W', '2771', '2623', '3145', '8085']

12, 11, 8593, 5065, 7979, 8137, 1945, 15, 13, 3347, 7603, 6857, 971, 19, 5, 23, 2771, 2623, 3145, 8085