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: ['Q', '5001', '1225', '1289', 'R', '3967', 'e', 'u', 'A', 'w', '6505', 'e', '5069', '225', '4317', 'M', 'H', 'Y', 'V', 'J', '3103', 'o', '9929', '3551', 'o', '4137', 'y', '4461', '6233']

17, 5001, 1225, 1289, 18, 3967, 5, 21, 1, 23, 6505, 5, 5069, 225, 4317, 13, 8, 25, 22, 10, 3103, 15, 9929, 3551, 15, 4137, 25, 4461, 6233