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.

['a', '6515', '1185', 'o', '7781', '2213', '6077', '2461', '8771', 'S', 'L', 'P', '9841', 'P', '7851', 's', '6149', 'r', '7129', '3325', 'X', '8229', 'h', 'J', 'Y', '3525', '3915', '8663', 'W', '2323', 'B', 'x', 'd', '4263', 'w', 'o', '4645', 'w']
1, 6515, 1185, 15, 7781, 2213, 6077, 2461, 8771, 19, 12, 16, 9841, 16, 7851, 19, 6149, 18, 7129, 3325, 24, 8229, 8, 10, 25, 3525, 3915, 8663, 23, 2323, 2, 24, 4, 4263, 23, 15, 4645, 23

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

['B', '9795', '4489', 'o', '1249', '1645', 'c', 'd', '2391', 'l', 'J', '6753', 'C', 'e', 'k', 'Y', 'b', '4981', 'K', 'H', 'a', '1415', '3621', '4473', 'M', '3451', '535', 'G', '8027', 'I', '8653', 'r', 'Q', 'a', '9955', 'g', 'K']

2, 9795, 4489, 15, 1249, 1645, 3, 4, 2391, 12, 10, 6753, 3, 5, 11, 25, 2, 4981, 11, 8, 1, 1415, 3621, 4473, 13, 3451, 535, 7, 8027, 9, 8653, 18, 17, 1, 9955, 7, 11