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: ['o', '105', '2539', 'I', 'X']

SOLUTION: 15, 105, 2539, 9, 24

PROBLEM: ['33', '2283', 'M', 'g', 'q', 'D', 'L', '8315', 'G', '3857', '7681', 'z']

SOLUTION: 33, 2283, 13, 7, 17, 4, 12, 8315, 7, 3857, 7681, 26

PROBLEM: ['k', 'N', 'g', '8435', '3395', '4369', '8403', '3921', '3917', 'E', 't', 'q', '6041']

SOLUTION:
11, 14, 7, 8435, 3395, 4369, 8403, 3921, 3917, 5, 20, 17, 6041