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: ['4867', 'Y', 't', '8365', 'f', '9409', 'H', '1913', 'J', 'F', 'w']

SOLUTION: 4867, 25, 20, 8365, 6, 9409, 8, 1913, 10, 6, 23

PROBLEM: ['1129', '9905', '2643', '2241', 'q']

SOLUTION: 1129, 9905, 2643, 2241, 17

PROBLEM: ['v', 'Q', 'r', 'g', 'K', 'Z', 'B', 'R', '173', '5313', 'b', 'Q', '9007', 'L', 'J', 'x', 'X', '3623', '5407', 'n', 'K', '2213', '1467', '3597', 's', '2799', 'P', 'y', 'j', '1591', '377', '8183']

SOLUTION:
22, 17, 18, 7, 11, 26, 2, 18, 173, 5313, 2, 17, 9007, 12, 10, 24, 24, 3623, 5407, 14, 11, 2213, 1467, 3597, 19, 2799, 16, 25, 10, 1591, 377, 8183