Definition: 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.
Input: ['4289', '4737', 'Y', 'W', 'C', '4537', '8505', '8109', '3355', 'y', '1687', 'V', '5755', '7219', 'J', '5245', 'p', 'A', 'b', 'D', 'v', 'B', 'U', '467', 'K', '8169', 'R', 'Q', 'Q', 'a', '8191', 'k', '1181', 'G']

4289, 4737, 25, 23, 3, 4537, 8505, 8109, 3355, 25, 1687, 22, 5755, 7219, 10, 5245, 16, 1, 2, 4, 22, 2, 21, 467, 11, 8169, 18, 17, 17, 1, 8191, 11, 1181, 7