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: ['b', 'T', '795', '3371', 'v', '117', 'Q', '6573', 'v', '8185', '2515', '1503', 'L', 'M', '6959', '2123', '2867', '4543', 'X', 'x', 'Y', 'L', '9981', 'K', 'S', 'i', 'H', 'X', '1501', '6843', 'u']

2, 20, 795, 3371, 22, 117, 17, 6573, 22, 8185, 2515, 1503, 12, 13, 6959, 2123, 2867, 4543, 24, 24, 25, 12, 9981, 11, 19, 9, 8, 24, 1501, 6843, 21