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: ['f', '7533', '7243', '2327', '8301', '2295', 'G', 'Y', '8523', '3993', '7627', '2355', 'X', '667', '6145', 's', 'Y', 'H', 'D', '411', '4079', '7061', 'Q', 'E']

6, 7533, 7243, 2327, 8301, 2295, 7, 25, 8523, 3993, 7627, 2355, 24, 667, 6145, 19, 25, 8, 4, 411, 4079, 7061, 17, 5