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: ['T', 'N', '3821', 'E', 'J', '8989', '8479', '1347', 'O', 'w', '9071', '1833', '7053', 'N', '7199', '3889', '7571', '2047', 'A', 'u', '9829', '7411', 't', 'x', '5627', 'o', 'Z']

20, 14, 3821, 5, 10, 8989, 8479, 1347, 15, 23, 9071, 1833, 7053, 14, 7199, 3889, 7571, 2047, 1, 21, 9829, 7411, 20, 24, 5627, 15, 26