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.

['N', 'R', 'W', '7465', '7983', 'J', 'V', 'u', '2855', '6815', 'l', '5985', 'Q', '939', 'D', 'F', 'B', 'B', '1091', 'J', 'n', '8029']
14, 18, 23, 7465, 7983, 10, 22, 21, 2855, 6815, 12, 5985, 17, 939, 4, 6, 2, 2, 1091, 10, 14, 8029

['v', '9147', 'x', '9763', '7161', 'M', 'o', '641', 'n', 'n', '8593', '5039', '6421', 'X', 'G', '4907', '3725', 'P', 'Z', 's', '4415', 'h', 'C', 'R', 'G', 'F', '1383', '2719', '8159', 'K', '4439', '9329', 'K', '4379', '7295', 'q']
22, 9147, 24, 9763, 7161, 13, 15, 641, 14, 14, 8593, 5039, 6421, 24, 7, 4907, 3725, 16, 26, 19, 4415, 8, 3, 18, 7, 6, 1383, 2719, 8159, 11, 4439, 9329, 11, 4379, 7295, 17

['9347', 'v', 's', '4055', '3789', 'q', 'O', 'X', '7553', 'm']

9347, 22, 19, 4055, 3789, 17, 15, 24, 7553, 13