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: ['8841', '1175', '9713', 'Z', 'c', 'G', 'm', 'v', 'D', '8951', 'x', 'r', 'X', '8477', 'F', '6091', '3297', 'R', 'N', '3811', 'I', 'O', 'C', 'n', '1513', 'k', 'P', 'S', '6987', '9601', 'X', '2307', '3763', 'N', 'f', 'B', 'D', 'C', '3337']

8841, 1175, 9713, 26, 3, 7, 13, 22, 4, 8951, 24, 18, 24, 8477, 6, 6091, 3297, 18, 14, 3811, 9, 15, 3, 14, 1513, 11, 16, 19, 6987, 9601, 24, 2307, 3763, 14, 6, 2, 4, 3, 3337