Task: Program Execution
Input (English): 2, 9, ['e', 'r', 'B', '2343', 'd', '7589', 'h', 'r', '5117', '2929', '4631', '4787', 'f', '9139', '3357', '6303', '3163', 's', '4063']
Output (English): r, 4631