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: ['S', '8419', 'p', '2659', 'y', 'e', '3697', '4945', 'S', '6933', 'W', '9691', 'S', '265', 'a', '7625']

SOLUTION: 19, 8419, 16, 2659, 25, 5, 3697, 4945, 19, 6933, 23, 9691, 19, 265, 1, 7625

PROBLEM: ['1327', '6419', 'k', '2175', 'w', '7697', 'T', '8963', '9845', 'r', '8423', '9387', '79', '6791', '5441', 'J', '291', '9981', 'S', '2361', 'b', '5587', 'Y', '3105', 'Q', '8853', 'U', '7933', 'Z', 'n', '3775', 'W', 'S', 'p', 'g', '445', '7699']

SOLUTION: 1327, 6419, 11, 2175, 23, 7697, 20, 8963, 9845, 18, 8423, 9387, 79, 6791, 5441, 10, 291, 9981, 19, 2361, 2, 5587, 25, 3105, 17, 8853, 21, 7933, 26, 14, 3775, 23, 19, 16, 7, 445, 7699

PROBLEM: ['o', '6653', 'I', 'x']

SOLUTION:
15, 6653, 9, 24