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.

['i', '1075', 'r', '4813', 'N', 'Z', '6071', '1829', 'h', '2477']
9, 1075, 18, 4813, 14, 26, 6071, 1829, 8, 2477

['B', 'z', '3345', 'n', 'E', '1329', 'c', 'G', 'n', '4519', 'J', 'r', 'C', 'C', 'y', 'g', 'm', 's', 'k', 'G', '4315', '8195', 'r', 'r', 'F', '5113', 'Y', '5907', 'L', '7943', 'D', '9443', 'b', 'Z', '8515', '179', 'M', 'u']
2, 26, 3345, 14, 5, 1329, 3, 7, 14, 4519, 10, 18, 3, 3, 25, 7, 13, 19, 11, 7, 4315, 8195, 18, 18, 6, 5113, 25, 5907, 12, 7943, 4, 9443, 2, 26, 8515, 179, 13, 21

['2487', 'E', '4559', 's', 'v', 'k', 'e', '5643', 'V', 'V', 'F', 'o', '2455', 'W', '1393', '6395', 'E', '2185', 'z', 'b', '2659', 'n', 'C', 'n', '7943', 'n']

2487, 5, 4559, 19, 22, 11, 5, 5643, 22, 22, 6, 15, 2455, 23, 1393, 6395, 5, 2185, 26, 2, 2659, 14, 3, 14, 7943, 14