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: ['4359', '6545', '7337', '5589', '9335', '3087', '7249', '9569', '2873', 'F', 'X', '9669', '3769', '2115', '8541', '4823', 'I', 'c', '9547']

SOLUTION: 4359, 6545, 7337, 5589, 9335, 3087, 7249, 9569, 2873, 6, 24, 9669, 3769, 2115, 8541, 4823, 9, 3, 9547

PROBLEM: ['8897', '4785', 't', '6549', 'r', '9073', 'B']

SOLUTION: 8897, 4785, 20, 6549, 18, 9073, 2

PROBLEM: ['r', '8827', 'w', '711', 'O', '8157', '2885', 'a', 't', 'f', 'r', 'P', '6375', 'J', 'S', '1513', 'I', '2293', '9687', 'm', 'r', '427', 'Y', '8809', '2945', '9949', '5365', 'Z']

SOLUTION:
18, 8827, 23, 711, 15, 8157, 2885, 1, 20, 6, 18, 16, 6375, 10, 19, 1513, 9, 2293, 9687, 13, 18, 427, 25, 8809, 2945, 9949, 5365, 26