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: ['c', 'Q', '4939', 'K', '2901', 'n', '1071', 'C', '1407', 'y', '6167', '9123', 'w', 'Z', '8219', 'k', 'y', 'V', '6345', 'f', 'y', '6093']

3, 17, 4939, 11, 2901, 14, 1071, 3, 1407, 25, 6167, 9123, 23, 26, 8219, 11, 25, 22, 6345, 6, 25, 6093