Task: Program Execution
Input (English): d 8729 4841 3663 W j e 1001 819 6847 S 9961 3811 6359 W x R T 4397 s 9377 L k 3825 5753 y P P I 9999 3277 u m 3759 l 835 981 N u 55
Output (English): 1, 5, 6, 7, 11, 15, 16, 17, 18, 20, 22, 23, 26, 27, 28, 29, 32, 33, 35, 38, 39