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: ['1051', 'w', '1375', '3821', 'n', 'd', '9069', 'u', 'A', 'C', 'c', 'T', '3663', '3711', '6511', 'i', '245', 'T', '1047', '4195', '3705']

SOLUTION: 1051, 23, 1375, 3821, 14, 4, 9069, 21, 1, 3, 3, 20, 3663, 3711, 6511, 9, 245, 20, 1047, 4195, 3705

PROBLEM: ['X', '5185', 'U', '9017', '3025', 'q', 'm', 'n', '7927', 'i', '1285', '2127', 'b', 'k', 'o', '9065', '8583', '921', 'I', '6909', '7181', '5681', 'z', 'K', 'T', '7321', 'q', 'm', 'N', 'p', 'O']

SOLUTION: 24, 5185, 21, 9017, 3025, 17, 13, 14, 7927, 9, 1285, 2127, 2, 11, 15, 9065, 8583, 921, 9, 6909, 7181, 5681, 26, 11, 20, 7321, 17, 13, 14, 16, 15

PROBLEM: ['w', '4213', 'E', '5293', 'r', '1177', 'J', 'u', '1835']

SOLUTION:
23, 4213, 5, 5293, 18, 1177, 10, 21, 1835