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.

['H', '7659', '3877', '1021', 'n', '3915', 'V', 'd', 'o', '9235', 'X', '6373', 'k', 'R', '6219', 'J', 'w', 'F', 'c', 'P', '8485']
8, 7659, 3877, 1021, 14, 3915, 22, 4, 15, 9235, 24, 6373, 11, 18, 6219, 10, 23, 6, 3, 16, 8485

['2515', 'a', 'e', 'n', '281', 'I', 'S', '8307', '3617', '6139', 'H', 'L', 'J', '4055', '9429', '5329', '9301', '2151', '5207', '1449', '4825', 'B', '7715', '4913', 'N', 'U', '9125', 'Y', '4343', 'R', 'x', 'f', '8727', '4801', 'G', 'x', '1377', '857', 'R', 'O']
2515, 1, 5, 14, 281, 9, 19, 8307, 3617, 6139, 8, 12, 10, 4055, 9429, 5329, 9301, 2151, 5207, 1449, 4825, 2, 7715, 4913, 14, 21, 9125, 25, 4343, 18, 24, 6, 8727, 4801, 7, 24, 1377, 857, 18, 15

['6617', 'P', 'I', '2901', '1779', '2479', '2715', '3857', 'U', '1367', '9271', 'e', 'N', '7309', 'h', 'a', 'I', 'b', 'z', 'k', 'C', '4063', '2367', 'D', 'f', 'S', 'X', 'A', 'z', 'l', 'c', 'D']

6617, 16, 9, 2901, 1779, 2479, 2715, 3857, 21, 1367, 9271, 5, 14, 7309, 8, 1, 9, 2, 26, 11, 3, 4063, 2367, 4, 6, 19, 24, 1, 26, 12, 3, 4