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: ['g', 'k', '4871', 'w', 'y', 'D', 'R', 'X', '5989', '5509', 'R', 'r', '6921', '5449', '3033', 'u', '1237', '5847', '583', 'L', '5649', 'l', 'V', '1763']

SOLUTION: 7, 11, 4871, 23, 25, 4, 18, 24, 5989, 5509, 18, 18, 6921, 5449, 3033, 21, 1237, 5847, 583, 12, 5649, 12, 22, 1763

PROBLEM: ['y', '675', 'V', 'g', 'e', 'q', '2641', 'x', '2685', 's', 'Q', '3767', 'H', 'k', 's', '519', '1171', '9255', 'L', '2943', '2183', 'z', '403', 'V', 'G', '6521']

SOLUTION: 25, 675, 22, 7, 5, 17, 2641, 24, 2685, 19, 17, 3767, 8, 11, 19, 519, 1171, 9255, 12, 2943, 2183, 26, 403, 22, 7, 6521

PROBLEM: ['8847', 'X', 'y', '9169', 'F', '4081', '2249', '6057', 'E', 'N', '9949', '9543', 't', '6609', 'u', 'E', 'a']

SOLUTION:
8847, 24, 25, 9169, 6, 4081, 2249, 6057, 5, 14, 9949, 9543, 20, 6609, 21, 5, 1