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: ['5793', 'v', 'O', 'G', 'l', 'T', '8337', '4117', '3049', '2253', 'O', '8365', 'c', 'B', '3531', 'j', '3195', '6651', '6103', 'A', '3017', '2165', '4715', 'x', 'W', '4259', 'O', '481', '8061', 't', 'h', '1543', 'm', 'E']

5793, 22, 15, 7, 12, 20, 8337, 4117, 3049, 2253, 15, 8365, 3, 2, 3531, 10, 3195, 6651, 6103, 1, 3017, 2165, 4715, 24, 23, 4259, 15, 481, 8061, 20, 8, 1543, 13, 5