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: ['1979', '9217', '4309', '4071', 'w', 'P', '5303', 't', 'g', 'q', 'X', '9773', 'T', '2279', '1211', '9503', '5667', 'O', 'P', '3685', '2417']

SOLUTION: 1979, 9217, 4309, 4071, 23, 16, 5303, 20, 7, 17, 24, 9773, 20, 2279, 1211, 9503, 5667, 15, 16, 3685, 2417

PROBLEM: ['F', '8797', 'j', '5703', 'B', 'F', '3381', '843', '8863', 'x', 'z', '2277', 'R', '647', 'y', 'h', 'y', '6633', 'j', '9413', 'C', 'X', '4901', '3627', '8735', 'o', '9701', 's', 'F', '7065', 'Y']

SOLUTION: 6, 8797, 10, 5703, 2, 6, 3381, 843, 8863, 24, 26, 2277, 18, 647, 25, 8, 25, 6633, 10, 9413, 3, 24, 4901, 3627, 8735, 15, 9701, 19, 6, 7065, 25

PROBLEM: ['2861', '3525', 'G', 'U', 'X', '9983', 's', '5745', '6063', '4995', 's', 'N', 'G', '1117', '687', '4153', 'F', 'n', 'C', '9525', 'i', '8925', '1055', '243', '2197', '2249', 't']

SOLUTION:
2861, 3525, 7, 21, 24, 9983, 19, 5745, 6063, 4995, 19, 14, 7, 1117, 687, 4153, 6, 14, 3, 9525, 9, 8925, 1055, 243, 2197, 2249, 20