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.

['843', 'x', '4539', '9275', '2045', '9357', '5163', 'Q', 'p', 'Y', '8851', 'O', 'd', '9385', '9755', '7575', 't', 'R', 'h', '9', '8009', 'C', 'N', 'J', '9667', 'Z', 'Y', 'r', 'J', '9481', '2813', '1171', 'H', 'l', 'Z']
843, 24, 4539, 9275, 2045, 9357, 5163, 17, 16, 25, 8851, 15, 4, 9385, 9755, 7575, 20, 18, 8, 9, 8009, 3, 14, 10, 9667, 26, 25, 18, 10, 9481, 2813, 1171, 8, 12, 26

['f', 'a', 'v', '4929', 'a', 'Q', 'G', 'o', '281', '401', '4089', '6131', 's', 'W', 'N', '9093', '6781', '7527', '3315', 'a']
6, 1, 22, 4929, 1, 17, 7, 15, 281, 401, 4089, 6131, 19, 23, 14, 9093, 6781, 7527, 3315, 1

['K', 'n', 'S', 'J', 'G', '129', '2153', '6095', '8267']

11, 14, 19, 10, 7, 129, 2153, 6095, 8267