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: ['7161', 'd', '6513', '803', 'U', 'k', 'm', '3707', '399', 'J', 'w', '2443', 't', 'A', '1885', 'h', 'h', 'Z', 'e', '5425', 'n', 'f', '7653', '6141', '4705', '6355', '6211', 'E', 'B', 'X', '6915', '7097', 'U', '7747', '1161', 'Z', '7517']

7161, 4, 6513, 803, 21, 11, 13, 3707, 399, 10, 23, 2443, 20, 1, 1885, 8, 8, 26, 5, 5425, 14, 6, 7653, 6141, 4705, 6355, 6211, 5, 2, 24, 6915, 7097, 21, 7747, 1161, 26, 7517