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: ['q', 'n', 'N', 'P', 'R', 'i', 'V', 'z', 'Z', '2703', '9831', 'd', 'Y', 'D', '3353', 'd', '9221', '5107', '8129', 'K', '3133', 'i', '4719', 'k', 'r', 'b', 'G', 'n', '411', '4543', '2839', '1317', 'D', 'c', '2195']

17, 14, 14, 16, 18, 9, 22, 26, 26, 2703, 9831, 4, 25, 4, 3353, 4, 9221, 5107, 8129, 11, 3133, 9, 4719, 11, 18, 2, 7, 14, 411, 4543, 2839, 1317, 4, 3, 2195