Task: Program Execution
Input (English): v x 2729 z 6653 9549 3981 5333 6567 z w E 7709 7145 l p N X 6239 7533 Y 8379 y 6545 y 7781 3937 3935 x b 2679
Output (English): 3, 5, 6, 7, 8, 9, 13, 14, 19, 20, 22, 24, 26, 27, 28, 31