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', 'E', '5611', '5407', '9297', '9563', 'C', 'd', 'D', 'W', '9751', '8139', 'S', '4437', '2331', '2487', 'r', '5649', '5099', '1255', '5865', 'Y', '1477', '1939', '9525', '6353', '7327', '5043', '2837', 'N', 't', 'R', 'R', 'T', 'Z', '353', '7545', 'V', '9287', '8973']

SOLUTION: 18, 5, 5611, 5407, 9297, 9563, 3, 4, 4, 23, 9751, 8139, 19, 4437, 2331, 2487, 18, 5649, 5099, 1255, 5865, 25, 1477, 1939, 9525, 6353, 7327, 5043, 2837, 14, 20, 18, 18, 20, 26, 353, 7545, 22, 9287, 8973

PROBLEM: ['A', 'I', '9305', '8043', '5795', 'W', '8343', '1885', 'L', 'A', '9939', '3239', '5333', 'F', '8141', 'u', '6229', 'i', 'H', '3959', '989', '9961', '9205', 'Z', '7153', '3365', 'X', 'N', '9831', '3819', '7429', 'B', '5155', 'O', 'q', '9145', 'w', '8813', 'n']

SOLUTION: 1, 9, 9305, 8043, 5795, 23, 8343, 1885, 12, 1, 9939, 3239, 5333, 6, 8141, 21, 6229, 9, 8, 3959, 989, 9961, 9205, 26, 7153, 3365, 24, 14, 9831, 3819, 7429, 2, 5155, 15, 17, 9145, 23, 8813, 14

PROBLEM: ['T', 'r', '5983']

SOLUTION:
20, 18, 5983