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: ['w', '2439', '9361', 'v', '955', '8177', '4755', 'U', 'J', '6417', '8111', '8013', '1721', 'o', 'L', 'd', '911', 'O', '8249', 'q']

23, 2439, 9361, 22, 955, 8177, 4755, 21, 10, 6417, 8111, 8013, 1721, 15, 12, 4, 911, 15, 8249, 17