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: ['a', 'L', 'f', '9185', '1009', 'f', 'Z', 'E', '6895', '6185', 'C', 'M', '5623', 'i', '4785', '6107', '6373', '547', 'P', '6169', '75', 'C', '9991', 'w', 'a', 'N', '759', 'k', 'g', '8829', 'Z', '7449', '8125', 'Y', '4507']

1, 12, 6, 9185, 1009, 6, 26, 5, 6895, 6185, 3, 13, 5623, 9, 4785, 6107, 6373, 547, 16, 6169, 75, 3, 9991, 23, 1, 14, 759, 11, 7, 8829, 26, 7449, 8125, 25, 4507