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.

['8619', 'o']
8619, 15

['J', '4935', 't', '3431', 'c', '8525', 'I', 'P', '3181', 'R', 'W', '7841', 'r', 'c', '8643', 'V', '9139', '9603', '7649', '7897', '6205', '7345', '2291', 'D', 'Q', '641', 'Y', '7249', '2685']
10, 4935, 20, 3431, 3, 8525, 9, 16, 3181, 18, 23, 7841, 18, 3, 8643, 22, 9139, 9603, 7649, 7897, 6205, 7345, 2291, 4, 17, 641, 25, 7249, 2685

['8467', 'x', '1721', 'S', '1977', '1017', 'X', '8631', '6769', '4663', 'Y', '6547', 'U', '4319', 'w', '785', 'K', 'w', 'o', 'P', 'L', 'Y']

8467, 24, 1721, 19, 1977, 1017, 24, 8631, 6769, 4663, 25, 6547, 21, 4319, 23, 785, 11, 23, 15, 16, 12, 25