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: ['9925', '2417', '2391', 'N', 'o', '9091', '801', '8329', '3923']

9925, 2417, 2391, 14, 15, 9091, 801, 8329, 3923