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.

[EX Q]: ['y', 'M', 'X', '6399', '8383', '4459']
[EX A]: 25, 13, 24, 6399, 8383, 4459

[EX Q]: ['7471', 'k', '5537', '3569']
[EX A]: 7471, 11, 5537, 3569

[EX Q]: ['l', 'Z', 'C', '2989']
[EX A]:
12, 26, 3, 2989