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: ['4393', '7757', 'D', '9075', 'g', 'p', '2183', 'o', 'w']

4393, 7757, 4, 9075, 7, 16, 2183, 15, 23