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: ['r', 'z', '9525', '4185', '8781', '4321', '3949', '3473', '8179', 'F', 'G', '8167', '9637', '1535', 'e', 'a', 'T', '6361', '8285', 'T', '2991', 'z', 'q', 'J', 'x', '2255', 'T', '5829', 'S', 'x', 'o', 'G', '1651', 'd', '6909', 'e', '739']

18, 26, 9525, 4185, 8781, 4321, 3949, 3473, 8179, 6, 7, 8167, 9637, 1535, 5, 1, 20, 6361, 8285, 20, 2991, 26, 17, 10, 24, 2255, 20, 5829, 19, 24, 15, 7, 1651, 4, 6909, 5, 739