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: ['I', '1955', 'O', 'F', 's', '6579', 'x', '5185', '1041', 'Q', 'F', 'C', '9569', '8555', '3131', '8219', '3817', 'Z', '9207', 'y', '9481', '5347', '37', '4613', '9439', 'o', '8293', '5989', '7801']

SOLUTION: 9, 1955, 15, 6, 19, 6579, 24, 5185, 1041, 17, 6, 3, 9569, 8555, 3131, 8219, 3817, 26, 9207, 25, 9481, 5347, 37, 4613, 9439, 15, 8293, 5989, 7801

PROBLEM: ['j', 'f', 'u', '5771', 'M', 'm', 'B', 'C', 'w', 'J', '8553', 'N', 'N', '9059', 'r', 'N', '9457']

SOLUTION: 10, 6, 21, 5771, 13, 13, 2, 3, 23, 10, 8553, 14, 14, 9059, 18, 14, 9457

PROBLEM: ['o', 'q', '4591', 'E', '5325', 'W', 'O', 'p', 'L', '4161', '15', '6653', '3473', 'K', '2863']

SOLUTION:
15, 17, 4591, 5, 5325, 23, 15, 16, 12, 4161, 15, 6653, 3473, 11, 2863