Task: Program Execution
Input (English): 5, ['1533', '5835', '801', '7783', '163', '2399', '5809', '2133', '489', '5329', '9049', '3393', '2847', '8319', '7017', 'a', '9207', 'D']
Output (English): 1533, 2399, 9049, a