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: ['2263', '4753', 'Q', '629', 'J', 'a', '7481', 'd', 'D', '8297', '3305', 'W', 'F', 'p', 'Q', 'g']

2263, 4753, 17, 629, 10, 1, 7481, 4, 4, 8297, 3305, 23, 6, 16, 17, 7