Task: Program Execution
Input (English): 15, 17, ['2647', '4601', 'U', 'O', '9945', '6063', '5707', '2277', '2179', '3027', '7471', 'U', '7775', '7911', '3061', 'B', 'e', 'j', 'L', '4481', 'P', '1503', '2011', 'U']
Output (English): 3061