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.

['U', '7017', 'w', 'Z', 'T', 'X', '8699', 'S', 'R']
21, 7017, 23, 26, 20, 24, 8699, 19, 18

['a', '3105', '1321', '7035', 'B', 'z', '7297', 's', '9107', '7389', 'E', '9239', 'l', 'n', 'E', '8255', 'h', '4269', 't', 'k', 'k', 'P', 'W', 'w', '3267', '4753', '6429', '7191', '6001', 'M', 'J', 'k', '5023']
1, 3105, 1321, 7035, 2, 26, 7297, 19, 9107, 7389, 5, 9239, 12, 14, 5, 8255, 8, 4269, 20, 11, 11, 16, 23, 23, 3267, 4753, 6429, 7191, 6001, 13, 10, 11, 5023

['9281', '2649', '6383', '6235', 'B', '5861', '6975', '7843', 'p', 'Y', 'r', 'D', 'G', '3575', 'm', '9539', 'w', 'l', '8267', 'm', '4967', 'D', '9845', 'L', 'S', 'V', '5435', 'o', 'p', 'n']

9281, 2649, 6383, 6235, 2, 5861, 6975, 7843, 16, 25, 18, 4, 7, 3575, 13, 9539, 23, 12, 8267, 13, 4967, 4, 9845, 12, 19, 22, 5435, 15, 16, 14