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: ['h', '5021', '7395', '4101', 'r', '703', '871', 'S', 'g', 'R', '3871', 'c', '6607', 'i', '7281', 'S', '8021', 'n', '9299', '4509', 'b', 'v', 'G', '9239', 'p']

SOLUTION: 8, 5021, 7395, 4101, 18, 703, 871, 19, 7, 18, 3871, 3, 6607, 9, 7281, 19, 8021, 14, 9299, 4509, 2, 22, 7, 9239, 16

PROBLEM: ['6573', '5519']

SOLUTION: 6573, 5519

PROBLEM: ['5015', '6827', 'S', '369', '4727', 'v', '3029', '5315', '5655', '4791', '2411', '321', 'W', '2747', '7671', 'S', '4671', '5449', '3363', 'J', 'J', 'I', 'o', '8175', '3279', '7719', 'X', 'A', '7559', 'h']

SOLUTION:
5015, 6827, 19, 369, 4727, 22, 3029, 5315, 5655, 4791, 2411, 321, 23, 2747, 7671, 19, 4671, 5449, 3363, 10, 10, 9, 15, 8175, 3279, 7719, 24, 1, 7559, 8