Task: Program Execution
Input (English): 15, 17, ['N', 'w', 'W', '3971', '6275', '4027', '6695', '2953', 'B', '623', '6319', 'I', '399', '6037', '7951', 'N', '127', '6771', 'o', '7699', '2999']
Output (English): 7951, N, 127