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: ['n', '1041', '3979', '6255', '51', '6505', 'A', '1063', 'q', '649', 'a', '2929', 'q', '4873', 'F', '8531', 'u', '3435', '9395', 'h', '1479', 'b', 'H', '6779', '2565', '275', '1665', '4649']

14, 1041, 3979, 6255, 51, 6505, 1, 1063, 17, 649, 1, 2929, 17, 4873, 6, 8531, 21, 3435, 9395, 8, 1479, 2, 8, 6779, 2565, 275, 1665, 4649