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: ['r', 'G', '8025', '4787', '4699', '4479', 'n', 'B', 'm', 'm', '3519', '8401', 'W', 'n', 'a', '9785', 'h', 'i', '6211', '3885', '3351', 'S', 'Q', 'M', '1743', 'X']

SOLUTION: 18, 7, 8025, 4787, 4699, 4479, 14, 2, 13, 13, 3519, 8401, 23, 14, 1, 9785, 8, 9, 6211, 3885, 3351, 19, 17, 13, 1743, 24

PROBLEM: ['9003', 'i', '881', 'l', 'f', '2663', '1619', 'Y', 'E', 'W', '2869', 'k', 'v', 'c', '9423', 'S', 'G', 'C', 's', '4311', '531', '9789', '937', 'F']

SOLUTION: 9003, 9, 881, 12, 6, 2663, 1619, 25, 5, 23, 2869, 11, 22, 3, 9423, 19, 7, 3, 19, 4311, 531, 9789, 937, 6

PROBLEM: ['1185', '5343', '2657', '3487', '1477', '4069', 'u', '8781', '7751', '4155', '8631', '8237', '8433', 'z', 'E', 'Z', 'o', 'R', '3213', '8629', 'D', 'T', '2615', 'M', '5203', 'r', '4515', '3519', 'g']

SOLUTION:
1185, 5343, 2657, 3487, 1477, 4069, 21, 8781, 7751, 4155, 8631, 8237, 8433, 26, 5, 26, 15, 18, 3213, 8629, 4, 20, 2615, 13, 5203, 18, 4515, 3519, 7