TASK DEFINITION: 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.
PROBLEM: ['J', '8585', 'T', '9947', '2275', '7577', '7651', '4841', '9491', 'N', '8437']

SOLUTION: 10, 8585, 20, 9947, 2275, 7577, 7651, 4841, 9491, 14, 8437

PROBLEM: ['2883', 'o', '7511', '2913', '4201', 'T', '9227', '3371', 'd', 'H', 'i', 'X', '5763', 'P', '7653', 'u', '4855', 'C', 'n', 'g', 'w', 's', '8369', '579', '2193', '1405', 'r', '2443', 'm', '5421']

SOLUTION: 2883, 15, 7511, 2913, 4201, 20, 9227, 3371, 4, 8, 9, 24, 5763, 16, 7653, 21, 4855, 3, 14, 7, 23, 19, 8369, 579, 2193, 1405, 18, 2443, 13, 5421

PROBLEM: ['t', 'N', '5369', '3207', '933', '1017', 'A', 'Z', '2051', '2893']

SOLUTION:
20, 14, 5369, 3207, 933, 1017, 1, 26, 2051, 2893