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: ['1183', '4279', 'f', 'I', 'I', '3533', '891', 'z', '5947', '8717', '6875', '7121', '3503', 'l', '1909', 'E', '6613', '5571', 's', 'R', 'e']

SOLUTION: 1183, 4279, 6, 9, 9, 3533, 891, 26, 5947, 8717, 6875, 7121, 3503, 12, 1909, 5, 6613, 5571, 19, 18, 5

PROBLEM: ['c', 'e', '8741', 'F', 'O', '407', '4435', '1887', 'O', '1193', '1821', '8135', '6717', 't', 'J', '6767', '639', 'q', '4145', '85', '3571', 'L', '2501', 'Y']

SOLUTION: 3, 5, 8741, 6, 15, 407, 4435, 1887, 15, 1193, 1821, 8135, 6717, 20, 10, 6767, 639, 17, 4145, 85, 3571, 12, 2501, 25

PROBLEM: ['i', 'w', '8547', '7931', 'T', '2787', 'u', 'i', 'g', '5255', 'n', '2153', 'K', '1295', '6761', 'U', 'h', 'z', '3559', '8471', '2627', 'L', '1663', 'v', '5663', '1249', 'g', 'J', 'W', 'v', '8363']

SOLUTION:
9, 23, 8547, 7931, 20, 2787, 21, 9, 7, 5255, 14, 2153, 11, 1295, 6761, 21, 8, 26, 3559, 8471, 2627, 12, 1663, 22, 5663, 1249, 7, 10, 23, 22, 8363