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', 'Z', 'd', 'N', 'S', '61', 'k', 'P', 'p', 'u', 'A', '7923', 'Z', '1313', 'e', '4847', 'N', '5939', 'a', '4641', 'W', '1543', 'G', '9093', 'n', 'D', 'g', '5199', '8165', 'x', '171', '7567', '1813', 'q', '5031', 'B', 'k', '2353', 'n']

20, 26, 4, 14, 19, 61, 11, 16, 16, 21, 1, 7923, 26, 1313, 5, 4847, 14, 5939, 1, 4641, 23, 1543, 7, 9093, 14, 4, 7, 5199, 8165, 24, 171, 7567, 1813, 17, 5031, 2, 11, 2353, 14