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.

['W', 'A', '4455', '9201', 'B', '2315', '2057', '5139', 'f', 'M', 'l', 'h', '5639', 'd', '125', '5483', 'I', '6603', '4363', 'B', 'O', 'z', '6093', 'x', 'p', '6141', '5013', 'n', 'W', '1603']
23, 1, 4455, 9201, 2, 2315, 2057, 5139, 6, 13, 12, 8, 5639, 4, 125, 5483, 9, 6603, 4363, 2, 15, 26, 6093, 24, 16, 6141, 5013, 14, 23, 1603

['P', '3341', 'j', 'A', '4173', 'T', '4883', '541', 'D', '8811', 'y', 's', 'w', '1691', '6899', 'D', '8761', '6445', 's', 'd', 'Q']
16, 3341, 10, 1, 4173, 20, 4883, 541, 4, 8811, 25, 19, 23, 1691, 6899, 4, 8761, 6445, 19, 4, 17

['2875', '2757', 'B', '317', 'P', '193', 'r', '1977', 'U', '5485', '3527', '583', '7159', 'L', 'v', 's', 'k', '7419', '7351', 'o', 'G', 'P', '5803', '7249', 'w']

2875, 2757, 2, 317, 16, 193, 18, 1977, 21, 5485, 3527, 583, 7159, 12, 22, 19, 11, 7419, 7351, 15, 7, 16, 5803, 7249, 23