Task: Program Execution
Input (English): 5, ['4453', '2315', '8205', '1047', 'x', '209', 'b', 'p', 'J', 'l', 'R', 'd', 'M', 'F', '4029', '3385', '8785', '6959']
Output (English): 4453, 209, R, 3385