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', '9709', '1533', 'w', 'M', 'z', '7459', '9617', '6763', '729', 'F', '8815', '363', '3349', '5129', 'L', 'L']

SOLUTION: 24, 9709, 1533, 23, 13, 26, 7459, 9617, 6763, 729, 6, 8815, 363, 3349, 5129, 12, 12

PROBLEM: ['4085', '2565', '701', '1367', '9349', '7415', '3509', 'j', '7311', 'z', 'r', '1845', '5165', '3653', 't', '1379', '9281', '371', '4001', '1411', '3747', 'l', 'd', 'J', '6795', '7629', 'O', '1769', '9391', 'r', '3205']

SOLUTION: 4085, 2565, 701, 1367, 9349, 7415, 3509, 10, 7311, 26, 18, 1845, 5165, 3653, 20, 1379, 9281, 371, 4001, 1411, 3747, 12, 4, 10, 6795, 7629, 15, 1769, 9391, 18, 3205

PROBLEM: ['7291', '1667', 'd', '9427', 'n', 'A', 'A', 'H', 'n', '1473', '4627', 'u', '949', 'x', 'F', 'Y', 't', '815', '6579', '6385', '8201', '4927', '499', '3365', 'Y', 'm', 'Y', '8459', '8355', 'U', '8623', '869', '1453', '3745', '2975', 'v']

SOLUTION:
7291, 1667, 4, 9427, 14, 1, 1, 8, 14, 1473, 4627, 21, 949, 24, 6, 25, 20, 815, 6579, 6385, 8201, 4927, 499, 3365, 25, 13, 25, 8459, 8355, 21, 8623, 869, 1453, 3745, 2975, 22