Task: Program Execution
Input (English): 2473 8421 x 5525 4795 4523 3691 8147 7139 v T J 6139 5565 C u 7645 e 7251 4285 4803 3265 h L 7387 v j 2343 1311 7077 K G t
Output (English): 1, 2, 4, 5, 6, 7, 8, 9, 13, 14, 17, 19, 20, 21, 22, 25, 28, 29, 30