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: ['H', 'E', '6069', 'w', 'g', '5227', 'g', 'L', 'k', '3403', 'v', 'N', 'g', 'M', 'q']

8, 5, 6069, 23, 7, 5227, 7, 12, 11, 3403, 22, 14, 7, 13, 17