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: ['6055', 'N', 'b', '2387', 'a', '397', '4971', 'm', '149', '8753', '711', '2625', 'V', '5727', '6353', 'm', '2137', '7053', 'g', '7177', '8329', '7505', '1891', 'X', '4019', '7525', '7065', 'D', '5213', 'G', 'A', '2603', 't', 'e', '207', '6371', '9317', '6545', '1371']

6055, 14, 2, 2387, 1, 397, 4971, 13, 149, 8753, 711, 2625, 22, 5727, 6353, 13, 2137, 7053, 7, 7177, 8329, 7505, 1891, 24, 4019, 7525, 7065, 4, 5213, 7, 1, 2603, 20, 5, 207, 6371, 9317, 6545, 1371