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.

['B', 'X', '5657', 'F', 'u', '6961', '5387', 'I', '6943', 'U', 'z', 'B', '8447', 'o', 'a', 'i', 'w', 'Q', 'h', 'h', 'T', 'g', '5161', '305']
2, 24, 5657, 6, 21, 6961, 5387, 9, 6943, 21, 26, 2, 8447, 15, 1, 9, 23, 17, 8, 8, 20, 7, 5161, 305

['a', '9907', '6485', 'K', 'e', 'X', '687', '7687', '589', 'n', '7287', '9637']
1, 9907, 6485, 11, 5, 24, 687, 7687, 589, 14, 7287, 9637

['5149', 'c', 'D', '3279', 'm', 'U', '1007', '9463', 'w', 'c', '9759', '345', '9557', 'n', 'o', '7555', 'm', 'q', 'f', '2881', '3715', '2603', '9633', 'I', 'L']

5149, 3, 4, 3279, 13, 21, 1007, 9463, 23, 3, 9759, 345, 9557, 14, 15, 7555, 13, 17, 6, 2881, 3715, 2603, 9633, 9, 12