Task: Program Execution
Input (English): 11, 12, ['U', 'R', '915', 'O', '8767', 'N', 'f', 'u', '6273', '6481', '5379', 'f', 'Z', 'N', '8243', '6569', 's', '317', '4359', '2813']
Output (English): 5379