Task: Program Execution
Input (English): 6137 o 4869 3009 8537 9103 z 8665 r z a x G 4759 2023 d 6241 3137 b i 9443 u Y L 8835 7339 6007 1923 B d
Output (English): 2, 7, 9, 10, 11, 12, 13, 16, 19, 20, 22, 23, 24, 29, 30