Task: Program Execution
Input (English): 9381 Y G r q 4191 3877 f 3061 r 4305 557 1467 3199 d y Q 9467 4181 2461 n l D O k 9309 S 8025 X U
Output (English): 2, 3, 4, 5, 8, 10, 15, 16, 17, 21, 22, 23, 24, 25, 27, 29, 30