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: ['i', '5051', 'M', '4299', '4033', '7367', '8585', 'E', '297', 'a', '5053', '1811', '8067', 'F', 'o', '3409', '8613', '9125', 'w', 'y', '9675']

9, 5051, 13, 4299, 4033, 7367, 8585, 5, 297, 1, 5053, 1811, 8067, 6, 15, 3409, 8613, 9125, 23, 25, 9675