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: ['7737', '3745', 'G', '8533', 'v', '7341', '5509', '2893', '6915', '8219', 'F', '3503', '2549', 'M', '8653', '2479', 'P', '8323', '3339', 'r', 'K', '5757', 'G', 'd', '8921', 'A', '1823', '5779']

7737, 3745, 7, 8533, 22, 7341, 5509, 2893, 6915, 8219, 6, 3503, 2549, 13, 8653, 2479, 16, 8323, 3339, 18, 11, 5757, 7, 4, 8921, 1, 1823, 5779