Task: Program Execution
Input (English): 17, 18, ['O', '171', 'l', '4171', '4817', 'B', 'W', '6999', 'E', '2661', 'g', 'Z', 'C', '4397', 'v', 'o', 'j', '9491', '8181', '4033', '2009']
Output (English): 9491, j