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: ['x', '29', '4845', 'y', 'j', '6269', 'L', '5723', 'J', '9363', '2835', 'F', '9783', '2871', 't', 'v', 'r', '9453', 'o', 'P', '2139', 'B', 'V', '4907', '3671', '2689', 'M']

SOLUTION: 24, 29, 4845, 25, 10, 6269, 12, 5723, 10, 9363, 2835, 6, 9783, 2871, 20, 22, 18, 9453, 15, 16, 2139, 2, 22, 4907, 3671, 2689, 13

PROBLEM: ['3345', '6477', 'H', '4143', 'E', 'g', '1607', '1405', '4485', '207', '3191', '2335', '6759', 'Z', '2385', '9181', 'I', '3283', '8735']

SOLUTION: 3345, 6477, 8, 4143, 5, 7, 1607, 1405, 4485, 207, 3191, 2335, 6759, 26, 2385, 9181, 9, 3283, 8735

PROBLEM: ['1785', 'L', '3163', 'u', 'c', 'r', '1573', '8129', 'w', 'X', '789', 'n', 'x', 'K', 'K', 'H', '8985', '4147', 'X', 'O', '327', '4585', 'O', 'n', '4317', 'o', '4351', '9859']

SOLUTION:
1785, 12, 3163, 21, 3, 18, 1573, 8129, 23, 24, 789, 14, 24, 11, 11, 8, 8985, 4147, 24, 15, 327, 4585, 15, 14, 4317, 15, 4351, 9859