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: ['s', 'Y', '4147', '1653', '7317', '1', 'd', 'F', 'i', 'c', 'v', '1481', '6409', 'F', '887', 's', '4749', '8829', '2321', '5131', 'T', 'f', 'd', 'A', '3183', '5077', 'w', 'Z', 'b', 'o', 'e', 'M', '2245', 'D', '9553', 'w', 'e', '6867', '4553', '2433']

19, 25, 4147, 1653, 7317, 1, 4, 6, 9, 3, 22, 1481, 6409, 6, 887, 19, 4749, 8829, 2321, 5131, 20, 6, 4, 1, 3183, 5077, 23, 26, 2, 15, 5, 13, 2245, 4, 9553, 23, 5, 6867, 4553, 2433