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.

Example Input: ['2515', 'a', 'e', 'n', '281', 'I', 'S', '8307', '3617', '6139', 'H', 'L', 'J', '4055', '9429', '5329', '9301', '2151', '5207', '1449', '4825', 'B', '7715', '4913', 'N', 'U', '9125', 'Y', '4343', 'R', 'x', 'f', '8727', '4801', 'G', 'x', '1377', '857', 'R', 'O']
Example Output: 2515, 1, 5, 14, 281, 9, 19, 8307, 3617, 6139, 8, 12, 10, 4055, 9429, 5329, 9301, 2151, 5207, 1449, 4825, 2, 7715, 4913, 14, 21, 9125, 25, 4343, 18, 24, 6, 8727, 4801, 7, 24, 1377, 857, 18, 15

Example Input: ['q', 'y', 'y', 'l', 'h', '6347', '7445', 'r', '3511', '8433', 't', '9123', 'L', 'C', 'i', '4441', '2765', 'w', 'f', 'C', 'R', 'B']
Example Output: 17, 25, 25, 12, 8, 6347, 7445, 18, 3511, 8433, 20, 9123, 12, 3, 9, 4441, 2765, 23, 6, 3, 18, 2

Example Input: ['9449', '3503', '7363', 'o', '9401', '5015', '5739', '1889', '6953', 'W', 'K', '8447']
Example Output:
9449, 3503, 7363, 15, 9401, 5015, 5739, 1889, 6953, 23, 11, 8447