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: ['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: ['q', '8519', 'T', '6859', '5397', '3753', '2057', '5723', 'T', 'R', '7807', 'h', '9507', '7865', '8513', '2309', 'j', 'n', 'P', 'a', '8971', 'U', '7927', '875', '3315', 'E', 't']

SOLUTION: 17, 8519, 20, 6859, 5397, 3753, 2057, 5723, 20, 18, 7807, 8, 9507, 7865, 8513, 2309, 10, 14, 16, 1, 8971, 21, 7927, 875, 3315, 5, 20

PROBLEM: ['Q', 'M', '4815', '7033', 'I']

SOLUTION:
17, 13, 4815, 7033, 9