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: ['y', '9573', 'j', '6697', '4179', '8985', '8999', 'R', '2585', 'h', 'p', '9407', '9575', '2639', '7655', '4683', 'Y']

SOLUTION: 25, 9573, 10, 6697, 4179, 8985, 8999, 18, 2585, 8, 16, 9407, 9575, 2639, 7655, 4683, 25

PROBLEM: ['8941', 'S', '7811', '3683', 'c', '4133', '7281', 'q', 't', 'L', 'H', '8555', 'h', '7851', 'x', '4329', 'Z', 'S', '2173', 'f', '6157', 'q']

SOLUTION: 8941, 19, 7811, 3683, 3, 4133, 7281, 17, 20, 12, 8, 8555, 8, 7851, 24, 4329, 26, 19, 2173, 6, 6157, 17

PROBLEM: ['7569', '8021', '2063', '9539', 'K', 'j', 'Z', '9723', 'e', 'd', '287']

SOLUTION:
7569, 8021, 2063, 9539, 11, 10, 26, 9723, 5, 4, 287