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: ['s', 'J', 'Z', 'V', 'n', 'L', 'B', 'O', 'z', 'G', 'F', 'C', '9723', '2185']

19, 10, 26, 22, 14, 12, 2, 15, 26, 7, 6, 3, 9723, 2185