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: ['l', 'Q', '9689', 'w', '9213', '9979', 'g', '9175', '9197', '2605', '6649']

12, 17, 9689, 23, 9213, 9979, 7, 9175, 9197, 2605, 6649