Task: Program Execution
Input (English): 12, 17, ['8623', '4867', 'F', '6077', 'B', '5389', 'R', '1121', '8775', '6873', 'R', '8991', 'J', '1865', '3809', '6755', 'I']
Output (English): I, 6755, 3809, 1865, J, 8991