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: ['3515', '5271', '4907', '4935', '7597', '5125', 'g', '8455', 'j', 'Y', '4277', '9577', 'W', '5615', 'u', 'r', '5171']
Example Output: 3515, 5271, 4907, 4935, 7597, 5125, 7, 8455, 10, 25, 4277, 9577, 23, 5615, 21, 18, 5171

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

Example Input: ['a', '4015', '6301']
Example Output:
1, 4015, 6301