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: ['3545', '3265', '5423', 's', 'g', '5771', 'm', 'j', '9523', '5833', '9377', 'Z', 'J', 'b', 'i', 'j', 'd', 'U', 'u', 'g', '2673', 'H', 'X', '4023', 'x', '7857', '2945', 'T', '8851', 'j', 'N', '5607', 'f', '6109', '6843']

3545, 3265, 5423, 19, 7, 5771, 13, 10, 9523, 5833, 9377, 26, 10, 2, 9, 10, 4, 21, 21, 7, 2673, 8, 24, 4023, 24, 7857, 2945, 20, 8851, 10, 14, 5607, 6, 6109, 6843