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: ['4785', '8467', 'L', '8053', '6029', 'y', '7247', 'B', '9371', 'G', '3035', 'q', '767', 'T', '2133', '2221', 'I', 'J', '9245', '6501', 'y', 'z', '4937', '4289', 'L', '195', '7025', 'w', 'A', '1763', '1211', 'c', '3837', 'm', 'o', 'E', 'S', '5211', 's', '4297']

4785, 8467, 12, 8053, 6029, 25, 7247, 2, 9371, 7, 3035, 17, 767, 20, 2133, 2221, 9, 10, 9245, 6501, 25, 26, 4937, 4289, 12, 195, 7025, 23, 1, 1763, 1211, 3, 3837, 13, 15, 5, 19, 5211, 19, 4297