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: ['4543', 'e', '9589', 'h', 'a', '3761', '3917', '5703', 'Y', '2331', 'o', '6267', 'o', '3555', '8543', '7181', '9155', '6607', '9017', 'X']

SOLUTION: 4543, 5, 9589, 8, 1, 3761, 3917, 5703, 25, 2331, 15, 6267, 15, 3555, 8543, 7181, 9155, 6607, 9017, 24

PROBLEM: ['V', 'z', '1757', 'K', 'z', 'v', '4761', '6505', '1369', 'Z', 'M', '8471', '7', '3963', '5891', 'W', '8417', '4899', '6537', 'W', 'I', 'M', '4479', 'x', '9089']

SOLUTION: 22, 26, 1757, 11, 26, 22, 4761, 6505, 1369, 26, 13, 8471, 7, 3963, 5891, 23, 8417, 4899, 6537, 23, 9, 13, 4479, 24, 9089

PROBLEM: ['b', 'T', '795', '3371', 'v', '117', 'Q', '6573', 'v', '8185', '2515', '1503', 'L', 'M', '6959', '2123', '2867', '4543', 'X', 'x', 'Y', 'L', '9981', 'K', 'S', 'i', 'H', 'X', '1501', '6843', 'u']

SOLUTION:
2, 20, 795, 3371, 22, 117, 17, 6573, 22, 8185, 2515, 1503, 12, 13, 6959, 2123, 2867, 4543, 24, 24, 25, 12, 9981, 11, 19, 9, 8, 24, 1501, 6843, 21