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', 'O', 'd', '7381', 'o', '2125', 'n', 'J', '8183', 'n', '5073', 'I', 'v', 'C', '8283', 'X', '7567', 'I', '5827', 'h', '4561', '2827', 'v', 'X', 'X', '7851', 'R', '1015', '6467', 'g', '1481']

5, 12, 15, 4, 7381, 15, 2125, 14, 10, 8183, 14, 5073, 9, 22, 3, 8283, 24, 7567, 9, 5827, 8, 4561, 2827, 22, 24, 24, 7851, 18, 1015, 6467, 7, 1481