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: ['e', 'L', 'D', 'B', 'o', '9793', 'T', '563', '4677', '3127', '185', 'X', '489', '5367', '609', '2117', 'E', '1199', '23', 'N', 'S', '7695', 'c', 'U', '5435', 'W', 'f', '2583', 'I', '1579', '8107', '4389']

5, 12, 4, 2, 15, 9793, 20, 563, 4677, 3127, 185, 24, 489, 5367, 609, 2117, 5, 1199, 23, 14, 19, 7695, 3, 21, 5435, 23, 6, 2583, 9, 1579, 8107, 4389