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.

['o', 'y', 'C', 'L', '507', '7317', '2639', '6933', '797', '383', '4431', 'Z', 'y', '8811', 'O', 'a', 'G', 'Z', 'J', 'q', '1859', '9395', '8505', 'X', 'J', 'x', 'f', 'd', '2263', 'p', '5635', 'y', '9251', 'Z', 'K']
15, 25, 3, 12, 507, 7317, 2639, 6933, 797, 383, 4431, 26, 25, 8811, 15, 1, 7, 26, 10, 17, 1859, 9395, 8505, 24, 10, 24, 6, 4, 2263, 16, 5635, 25, 9251, 26, 11

['3731', 'V', 'C', 'S', '8601', '2753', '9015', '7233', '3903', 'v', '9723', 'J', '5227', 'N', 'S', 'f']
3731, 22, 3, 19, 8601, 2753, 9015, 7233, 3903, 22, 9723, 10, 5227, 14, 19, 6

['S', 's', 'x', 'g', '3839', '5267', '9719', '237', '9047', '3121', '5391', 'W', '2311', 'W', '7399', 'W', 'Q']

19, 19, 24, 7, 3839, 5267, 9719, 237, 9047, 3121, 5391, 23, 2311, 23, 7399, 23, 17