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: ['9865', '2353', '7849', '9265', 'h', '2815', '4283', 'j', '6803', '1879', 'z', 'c', 'Z', '6201', 'j', 'K', '4591', 'i', 'p', 'J', '5883', 'S', 'E', '3749', '5935', 'g', '9177', 'B', '4133', '299', '2491', 'n', 'S', '5361']

9865, 2353, 7849, 9265, 8, 2815, 4283, 10, 6803, 1879, 26, 3, 26, 6201, 10, 11, 4591, 9, 16, 10, 5883, 19, 5, 3749, 5935, 7, 9177, 2, 4133, 299, 2491, 14, 19, 5361