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', '1441', '397', 'S', '8833', '9829', 'g', 'U', 'W', '9651', '9403', '7013', '8445', 'D', 'M']
9, 1441, 397, 19, 8833, 9829, 7, 21, 23, 9651, 9403, 7013, 8445, 4, 13

['l', 'F', 'o', '8761', 'o', 't', '2151', '1421', '9381', 'o', '8687', 'i', 'B', '7911', '2759', 'M', '4555', '3747', '145', 'W']
12, 6, 15, 8761, 15, 20, 2151, 1421, 9381, 15, 8687, 9, 2, 7911, 2759, 13, 4555, 3747, 145, 23

['7723', '2369', '9665', 'p', 'h', '2853', '1741', '5601', 'J', 'a', 't', 'm', 'l', 'U', 'O', '2997', '8037', '8135', 'M', '9911', 'r', '6889', '2459', '4773', 'K', 'k', '6511', 't', '277', 'k', 'b', '1129', '8217']

7723, 2369, 9665, 16, 8, 2853, 1741, 5601, 10, 1, 20, 13, 12, 21, 15, 2997, 8037, 8135, 13, 9911, 18, 6889, 2459, 4773, 11, 11, 6511, 20, 277, 11, 2, 1129, 8217