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: ['725', 'X', '7183', '9693', 'i', '2849', '953', 'd', 'n', 'L', 'R', '9861', '6901', '689', 'I', '7605', '8829', '6129', 'm', 'c', '3753', '5885', '6569', 's', '1833']

725, 24, 7183, 9693, 9, 2849, 953, 4, 14, 12, 18, 9861, 6901, 689, 9, 7605, 8829, 6129, 13, 3, 3753, 5885, 6569, 19, 1833