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: ['7113', 'e', '4843', 'J', 'o', 'u', '6765', '4695', 's', '4943', 'V', '9591', '7275', '8543', 'h', '6863', 'o', '7859', '4669', 'B', '7729', '8395', 'W', '4719', 'o', '2443', 'P', 'M', 'r', '5339', '2053', 'O', 'w', '7641', '8003', 'E']

7113, 5, 4843, 10, 15, 21, 6765, 4695, 19, 4943, 22, 9591, 7275, 8543, 8, 6863, 15, 7859, 4669, 2, 7729, 8395, 23, 4719, 15, 2443, 16, 13, 18, 5339, 2053, 15, 23, 7641, 8003, 5