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.

['L', '9821', 'k', '4663', 'v', 'r', 'N', 'I', 'x', '9133', 'I', 'o', 'n', '6159', 'g', 'U', '5579', 'Y', 't', 'a', 'A']
12, 9821, 11, 4663, 22, 18, 14, 9, 24, 9133, 9, 15, 14, 6159, 7, 21, 5579, 25, 20, 1, 1

['q', 'B', 'U', '9387']
17, 2, 21, 9387

['e', 'u', '1701', '6525', '765', '869', 'Y', '9283', '3047', 'H', '2541', 'i', '7541', '4783', 'v', '5731', 'L', 'p']

5, 21, 1701, 6525, 765, 869, 25, 9283, 3047, 8, 2541, 9, 7541, 4783, 22, 5731, 12, 16