Task: Program Execution
Input (English): 673 2883 n 4007 J e W 8125 1099 5313 w 5371 4907 a 8115 6145 217 997 771 D Y y z K u 8939 9573 K l
Output (English): 1, 2, 4, 8, 9, 10, 12, 13, 15, 16, 17, 18, 19, 26, 27