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.

['q', 'm', '8063', 'l', 'R', 'f', '1911', 'z', '5321', '9499', '1699', 'D', 'U', 'B', '1459', '9273', '5981', '8825', 'c', 'I', '9029', 'o', '1903', 'l', 'U', 'I', 'P', 'E', 't', 'O', '3231', '899', 's', 'c', 'u', '7863', 'V']
17, 13, 8063, 12, 18, 6, 1911, 26, 5321, 9499, 1699, 4, 21, 2, 1459, 9273, 5981, 8825, 3, 9, 9029, 15, 1903, 12, 21, 9, 16, 5, 20, 15, 3231, 899, 19, 3, 21, 7863, 22

['3059', '4039', 'c', 'R', '7329', 'm', 'E', 'R', '1231', '6861', '29']
3059, 4039, 3, 18, 7329, 13, 5, 18, 1231, 6861, 29

['1507', 'Z', 'Q', '2369', 'u', 'y', '2589', 'D', 'P', '1967', '719', 'U', '9541', '3185', 'Y', 'x', '887', 'C', '2561', '4659', '145', 'B', '4153', 'e', '8831', 'I', '9299', '2833', '8413']

1507, 26, 17, 2369, 21, 25, 2589, 4, 16, 1967, 719, 21, 9541, 3185, 25, 24, 887, 3, 2561, 4659, 145, 2, 4153, 5, 8831, 9, 9299, 2833, 8413