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: ['9813', '1133', 'p', '1719', '6415', '4801', 's', '6537', 'a', 'r', '707', '595', '9819', '3367', 'j', '1363', 'F', '9641', 'J', '9175', 'v', 'S']

9813, 1133, 16, 1719, 6415, 4801, 19, 6537, 1, 18, 707, 595, 9819, 3367, 10, 1363, 6, 9641, 10, 9175, 22, 19