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: ['6825', 'j', '27', 'S', '7415', 'T', '183', 'L', '5077', 'a', '9983', 'O', '4159', 's', 'w', '4145', '4509', 'S', 'y', 'J', 'q', 'j', 'c', 'T', 'J', '4809', '1243', 'm', 't', 'B', 't', 'H', '4591', '6653']

6825, 10, 27, 19, 7415, 20, 183, 12, 5077, 1, 9983, 15, 4159, 19, 23, 4145, 4509, 19, 25, 10, 17, 10, 3, 20, 10, 4809, 1243, 13, 20, 2, 20, 8, 4591, 6653