Task: Program Execution
Input (English): 15, 18, ['2871', '5107', '8503', 'W', 'A', '7721', '5083', 'r', 'f', '8463', '6863', '6175', 'L', 'M', '9869', '7363', '113', 'u', '6895', 'r', '3833', '3501', '3001', 'U', '5867']
Output (English): 17345