Task: Program Execution
Input (English): f 9171 i b 9979 807 7873 6343 u 3263 q 1693 8541 2425 P g 5151 T j n 7329 4861 8915 277 4611 6839 3299 R r f
Output (English): 1, 3, 4, 9, 11, 15, 16, 18, 19, 20, 28, 29, 30