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: ['2769', 'p', '6953', '2529', '1113', '3487', '535', 'z', '8323', '9555', 'c', '6347', 'r', '9021', 'd', 'Z', 'j', '5955', 'r', '6651', '2745', 'u', 'B', '143', 'm', '4533']

SOLUTION: 2769, 16, 6953, 2529, 1113, 3487, 535, 26, 8323, 9555, 3, 6347, 18, 9021, 4, 26, 10, 5955, 18, 6651, 2745, 21, 2, 143, 13, 4533

PROBLEM: ['i', 'P', '227', '5575', 'O', 'l', '9041', 'q', '3695', '6189', 'x', 'z', 'R', '297', 'b', '5055', 'y', 'k', '4049', 'q', 'Z', '635', '5995', '2277', '6733']

SOLUTION: 9, 16, 227, 5575, 15, 12, 9041, 17, 3695, 6189, 24, 26, 18, 297, 2, 5055, 25, 11, 4049, 17, 26, 635, 5995, 2277, 6733

PROBLEM: ['w', '5345', '5197', 'p', 'l', 'A', '8251', '8791', '7259', 'r', 'N', 'i', 'i', 'V', 'T', '4505', 'H', '5665', '7769', 'e', '7065', 'f', '9279', '8043']

SOLUTION:
23, 5345, 5197, 16, 12, 1, 8251, 8791, 7259, 18, 14, 9, 9, 22, 20, 4505, 8, 5665, 7769, 5, 7065, 6, 9279, 8043